diff --git a/Runtime/CBasics.hpp b/Runtime/CBasics.hpp
index 91030ea84..5ed539f72 100644
--- a/Runtime/CBasics.hpp
+++ b/Runtime/CBasics.hpp
@@ -39,7 +39,8 @@ public:
     static OSTime ToWiiTime(std::chrono::system_clock::time_point time);
     static std::chrono::system_clock::time_point FromWiiTime(OSTime wiiTime);
 
-    static OSCalendarTime ToCalendarTime(OSTime time);
+    static OSCalendarTime ToCalendarTime(OSTime time) { return ToCalendarTime(FromWiiTime(time)); }
+    static OSCalendarTime ToCalendarTime(std::chrono::system_clock::time_point time);
 };
 
 }
diff --git a/Runtime/CBasicsPC.cpp b/Runtime/CBasicsPC.cpp
index ccacdabfe..6e099827e 100644
--- a/Runtime/CBasicsPC.cpp
+++ b/Runtime/CBasicsPC.cpp
@@ -24,45 +24,88 @@ const char* CBasics::Stringize(const char* fmt, ...)
 const u64 CBasics::SECONDS_TO_2000 = 946684800LL;
 const u64 CBasics::TICKS_PER_SECOND = 60750000LL;
 
+#ifndef _WIN32
+static struct tm* localtime_r(const time_t& time, struct tm& timeSt, long& gmtOff)
+{
+    auto ret = localtime_r(&time, &timeSt);
+    if (!ret)
+        return nullptr;
+    gmtOff = ret->tm_gmtoff;
+    return ret;
+}
+#else
+static struct tm* localtime_r(const time_t& time, struct tm& timeSt, long& gmtOff)
+{
+    struct tm _gmSt;
+    auto reta = localtime_s(&timeSt, &time);
+    auto retb = gmtime_s(&_gmSt, &time);
+    if (reta || retb)
+        return nullptr;
+    gmtOff = mktime(&timeSt) - mktime(&_gmSt);
+    return &timeSt;
+}
+#endif
+
 OSTime CBasics::ToWiiTime(std::chrono::system_clock::time_point time)
 {
-    time_t sysTime, tzDiff;
-    struct tm* gmTime;
+    auto sec = std::chrono::time_point_cast<std::chrono::seconds>(time);
+    auto us = std::chrono::duration_cast<std::chrono::microseconds>((time - sec)).count();
+    time_t sysTime = std::chrono::system_clock::to_time_t(sec);
 
-    sysTime = std::chrono::system_clock::to_time_t(time);
-    // Account for DST where needed
-    gmTime = localtime(&sysTime);
-    if (!gmTime)
+    struct tm _timeSt;
+    long gmtOff;
+    struct tm* timeSt = localtime_r(sysTime, _timeSt, gmtOff);
+    if (!timeSt)
         return 0;
 
-    // Lazy way to get local time in sec
-    gmTime = gmtime(&sysTime);
-    tzDiff = sysTime - mktime(gmTime);
-
-    return OSTime(TICKS_PER_SECOND * ((sysTime + tzDiff) - SECONDS_TO_2000));
+    /* Returning local */
+    return OSTime(TICKS_PER_SECOND * ((sysTime + gmtOff) - SECONDS_TO_2000) +
+                  us * TICKS_PER_SECOND / 1000000);
 }
 
 std::chrono::system_clock::time_point CBasics::FromWiiTime(OSTime wiiTime)
 {
-    time_t time = SECONDS_TO_2000 + wiiTime / TICKS_PER_SECOND;
+    auto div = std::lldiv(SECONDS_TO_2000 + wiiTime, TICKS_PER_SECOND);
+    time_t time = time_t(div.quot);
 
     time_t sysTime = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
-    // Account for DST where needed
-    struct tm* gmTime = localtime(&sysTime);
-    if (!gmTime)
+    struct tm _timeSt;
+    long gmtOff;
+    struct tm* timeSt = localtime_r(sysTime, _timeSt, gmtOff);
+    if (!timeSt)
         return std::chrono::system_clock::from_time_t(0);
 
-    // Lazy way to get local time in sec
-    gmTime = gmtime(&sysTime);
-    time_t tzDiff = sysTime - mktime(gmTime);
-
-    return std::chrono::system_clock::from_time_t(time - tzDiff);
+    /* Returning GMT */
+    return std::chrono::system_clock::from_time_t(time - gmtOff) +
+           std::chrono::microseconds(div.rem * 1000000 / TICKS_PER_SECOND);
 }
 
-OSCalendarTime CBasics::ToCalendarTime(OSTime time)
+OSCalendarTime CBasics::ToCalendarTime(std::chrono::system_clock::time_point time)
 {
-    OSCalendarTime ret = {};
-    /* TODO: Finsh */
+    OSCalendarTime ret;
+
+    auto sec = std::chrono::time_point_cast<std::chrono::seconds>(time);
+    auto us = std::chrono::duration_cast<std::chrono::microseconds>((time - sec)).count();
+    time_t sysTime = std::chrono::system_clock::to_time_t(sec);
+    struct tm _timeSt;
+    long gmtOff;
+    struct tm* timeSt = localtime_r(sysTime, _timeSt, gmtOff);
+    if (!timeSt)
+        return {};
+
+    ret.x0_sec = timeSt->tm_sec;
+    ret.x4_min = timeSt->tm_min;
+    ret.x8_hour = timeSt->tm_hour;
+    ret.xc_mday = timeSt->tm_mday;
+    ret.x10_mon = timeSt->tm_mon;
+    ret.x14_year = timeSt->tm_year + 1900;
+    ret.x18_wday = timeSt->tm_wday;
+    ret.x1c_yday = timeSt->tm_yday;
+
+    auto div = std::ldiv(us, 1000);
+    ret.x20_msec = div.quot;
+    ret.x24_usec = div.rem;
+
     return ret;
 }
 
diff --git a/Runtime/CMemoryCardSys.cpp b/Runtime/CMemoryCardSys.cpp
index 9c6dcbab2..08d54cc36 100644
--- a/Runtime/CMemoryCardSys.cpp
+++ b/Runtime/CMemoryCardSys.cpp
@@ -189,9 +189,9 @@ void CMemoryCardSys::CCardFileInfo::BuildCardBuffer()
 
     CMemoryOutStream w(x104_cardBuffer.data(), x104_cardBuffer.size());
     w.writeUint32Big(0);
-    char name[64];
-    strncpy(name, x28_name2.data(), 64);
-    w.writeBytes(name, 64);
+    char comment[64];
+    strncpy(comment, x28_comment.data(), 64);
+    w.writeBytes(comment, 64);
     WriteBannerData(w);
     WriteIconData(w);
     memmove(x104_cardBuffer.data() + bannerSz, xf4_saveBuffer.data(), xf4_saveBuffer.size());
diff --git a/Runtime/CMemoryCardSys.hpp b/Runtime/CMemoryCardSys.hpp
index e46d0a5cc..582e6d370 100644
--- a/Runtime/CMemoryCardSys.hpp
+++ b/Runtime/CMemoryCardSys.hpp
@@ -172,8 +172,8 @@ public:
 
         EStatus x0_status = EStatus::Standby;
         CARDFileInfo x4_info;
-        std::string x18_name;
-        std::string x28_name2;
+        std::string x18_fileName;
+        std::string x28_comment;
         ResId x3c_bannerTex = -1;
         std::experimental::optional<TLockedToken<CTexture>> x40_bannerTok;
         rstl::reserved_vector<Icon, 8> x50_iconToks;
@@ -183,7 +183,7 @@ public:
         CVParamTransfer m_texParam = {new TObjOwnerParam<u32>(SBIG('OTEX'))};
 
         CCardFileInfo(EMemoryCardPort port, const std::string& name)
-        : x4_info(port), x18_name(name) {}
+        : x4_info(port), x18_fileName(name) {}
 
         void LockBannerToken(ResId bannerTxtr, CSimplePool& sp);
         void LockIconToken(ResId iconTxtr, u32 speed, CSimplePool& sp);
@@ -195,11 +195,18 @@ public:
         void BuildCardBuffer();
         void WriteBannerData(CMemoryOutStream& out) const;
         void WriteIconData(CMemoryOutStream& out) const;
+        void SetComment(const std::string& c) { x28_comment = c; }
         ECardResult PumpCardTransfer();
         ECardResult GetStatus(CARDStat& stat) const;
         ECardResult CreateFile();
         ECardResult Write();
         ECardResult Close();
+
+        CMemoryOutStream BeginMemoryOut(u32 sz)
+        {
+            xf4_saveBuffer.resize(sz);
+            return CMemoryOutStream(xf4_saveBuffer.data(), sz);
+        }
     };
 
     static CardProbeResults CardProbe(EMemoryCardPort port);
diff --git a/Runtime/MP1/CMemoryCardDriver.cpp b/Runtime/MP1/CMemoryCardDriver.cpp
index a6c77708a..40cdfa57e 100644
--- a/Runtime/MP1/CMemoryCardDriver.cpp
+++ b/Runtime/MP1/CMemoryCardDriver.cpp
@@ -226,9 +226,9 @@ CGameState::GameFileStateInfo* CMemoryCardDriver::GetGameFileStateInfo(int idx)
 CMemoryCardDriver::SSaveHeader CMemoryCardDriver::LoadSaveHeader(CMemoryInStream& in)
 {
     SSaveHeader ret;
-    ret.x0_ = in.readUint32Big();
+    ret.x0_version = in.readUint32Big();
     for (int i=0 ; i<3 ; ++i)
-        ret.x4_[i] = in.readBool();
+        ret.x4_savePresent[i] = in.readBool();
     return ret;
 }
 
@@ -655,10 +655,28 @@ void CMemoryCardDriver::GoTo29()
         Case29(result);
 }
 
+void CMemoryCardDriver::GoTo31()
+{
+    x14_error = EError::Zero;
+    x10_state = EState::ThirtyOne;
+    if (x18_cardFreeBytes < 8192 || x1c_cardFreeFiles < 2)
+    {
+        x10_state = EState::Eighteen;
+        x14_error = EError::Five;
+        return;
+    }
+
+    x198_fileInfo = std::make_unique<CMemoryCardSys::CCardFileInfo>(x0_cardPort, SaveFileNames[x194_fileIdx]);
+    InitializeFileInfo();
+    ECardResult result = x198_fileInfo->CreateFile();
+    if (result != ECardResult::CARD_RESULT_READY)
+        Case31(result);
+}
+
 void CMemoryCardDriver::GoTo32()
 {
     x14_error = EError::Zero;
-    x10_state = EState::Write;
+    x10_state = EState::ThirtyTwo;
     ECardResult result = x198_fileInfo->Write();
     if (result != ECardResult::CARD_RESULT_READY)
         Case32(result);
@@ -667,7 +685,7 @@ void CMemoryCardDriver::GoTo32()
 void CMemoryCardDriver::GoTo33()
 {
     x14_error = EError::Zero;
-    x10_state = EState::ThirtyThree;
+    x10_state = EState::FileBuild;
     ClearFileInfo();
     if (x18_cardFreeBytes < 8192 || !x1c_cardFreeFiles)
     {
@@ -686,7 +704,7 @@ void CMemoryCardDriver::GoTo33()
 void CMemoryCardDriver::GoTo34()
 {
     x14_error = EError::Zero;
-    x10_state = EState::ThirtyFour;
+    x10_state = EState::FileWrite;
     ECardResult result = x198_fileInfo->Write();
     if (result != ECardResult::CARD_RESULT_READY)
         Case34(result);
@@ -707,7 +725,7 @@ void CMemoryCardDriver::GoTo36()
     if (x194_fileIdx == 1)
     {
         x14_error = EError::Zero;
-        x10_state = EState::ThirtySix;
+        x10_state = EState::FileRename;
         ECardResult result = CMemoryCardSys::Rename(x0_cardPort,
                                                     SaveFileNames[x194_fileIdx],
                                                     SaveFileNames[!bool(x194_fileIdx)]);
@@ -733,7 +751,31 @@ void CMemoryCardDriver::GoTo37()
 void CMemoryCardDriver::InitializeFileInfo()
 {
     ExportPersistentOptions();
-    /* TODO: Finish */
+
+    OSCalendarTime time = CBasics::ToCalendarTime(std::chrono::system_clock::now());
+    char timeString[32];
+    snprintf(timeString, 32, "%02d.%02d.%02d  %02d:%02d",
+             time.x10_mon + 1, time.xc_mday, time.x14_year % 100,
+             time.x8_hour, time.x4_min);
+    std::string comment("Metroid Prime                   ");
+    comment += timeString;
+    x198_fileInfo->SetComment(comment);
+
+    x198_fileInfo->LockBannerToken(x4_saveBanner, *g_SimplePool);
+    x198_fileInfo->LockIconToken(x8_saveIcon0, 2, *g_SimplePool);
+
+    CMemoryOutStream w = x198_fileInfo->BeginMemoryOut(3004);
+
+    SSaveHeader header;
+    for (int i=0 ; i<3 ; ++i)
+        header.x4_savePresent[i] = xe4_fileSlots[i].operator bool();
+    header.DoPut(w);
+
+    w.writeBytes(x30_systemData, 174);
+
+    for (int i=0 ; i<3 ; ++i)
+        if (xe4_fileSlots[i])
+            xe4_fileSlots[i]->DoPut(w);
 }
 
 void CMemoryCardDriver::WriteBackupBuf()
@@ -822,19 +864,19 @@ void CMemoryCardDriver::Update()
         case EState::ThirtyOne:
             Case31(resultCode);
             break;
-        case EState::Write:
+        case EState::ThirtyTwo:
             Case32(resultCode);
             break;
-        case EState::ThirtyThree:
+        case EState::FileBuild:
             Case33(resultCode);
             break;
-        case EState::ThirtyFour:
+        case EState::FileWrite:
             Case34(resultCode);
             break;
         case EState::ThirtyFive:
             Case35(resultCode);
             break;
-        case EState::ThirtySix:
+        case EState::FileRename:
             Case36(resultCode);
             break;
         case EState::CardFormat:
diff --git a/Runtime/MP1/CMemoryCardDriver.hpp b/Runtime/MP1/CMemoryCardDriver.hpp
index 144e7dec7..a4c5219e3 100644
--- a/Runtime/MP1/CMemoryCardDriver.hpp
+++ b/Runtime/MP1/CMemoryCardDriver.hpp
@@ -47,11 +47,11 @@ public:
         TwentyNine = 29,
         Thirty = 30,
         ThirtyOne = 31,
-        Write = 32,
-        ThirtyThree = 33,
-        ThirtyFour = 34,
+        ThirtyTwo = 32,
+        FileBuild = 33,
+        FileWrite = 34,
         ThirtyFive = 35,
-        ThirtySix = 36,
+        FileRename = 36,
         CardFormat = 37
     };
 
@@ -98,8 +98,14 @@ private:
 
     struct SSaveHeader
     {
-        u32 x0_;
-        u32 x4_[3];
+        u32 x0_version = 0;
+        bool x4_savePresent[3];
+        void DoPut(CMemoryOutStream& out) const
+        {
+            out.writeUint32Big(x0_version);
+            for (int i=0 ; i<3 ; ++i)
+                out.writeBool(x4_savePresent[i]);
+        }
     };
 
     struct SGameFileSlot
@@ -109,6 +115,10 @@ private:
         SGameFileSlot();
         SGameFileSlot(CMemoryInStream& in);
         void InitializeFromGameState();
+        void DoPut(CMemoryOutStream& w) const
+        {
+            w.writeBytes(x0_saveBuffer, 940);
+        }
     };
 
     CMemoryCardSys::EMemoryCardPort x0_cardPort;
@@ -164,6 +174,7 @@ public:
     void GoTo17();
     void GoTo28();
     void GoTo29();
+    void GoTo31();
     void GoTo32();
     void GoTo33();
     void GoTo34();
diff --git a/Runtime/MP1/CSaveUI.cpp b/Runtime/MP1/CSaveUI.cpp
index d7eb28f9f..2c9de2bc3 100644
--- a/Runtime/MP1/CSaveUI.cpp
+++ b/Runtime/MP1/CSaveUI.cpp
@@ -12,9 +12,84 @@ namespace MP1
 {
 
 using EState = CMemoryCardDriver::EState;
+using EError = CMemoryCardDriver::EError;
+
+void CSaveUI::ResetCardDriver()
+{
+    x92_ = false;
+    x6c_cardDriver.reset();
+    bool flag = (x0_instIdx == 0 && !x90_needsDriverReset);
+    x6c_cardDriver = ConstructCardDriver(flag);
+    x6c_cardDriver->FinishedLoading();
+    x10_uiType = UIType::Zero;
+    FinishedLoading();
+}
 
 CIOWin::EMessageReturn CSaveUI::Update(float dt)
 {
+    if (PumpLoad())
+        return CIOWin::EMessageReturn::Normal;
+
+    x50_loadedFrame->Update(dt);
+    x6c_cardDriver->Update();
+
+    if (x6c_cardDriver->x10_state == EState::RuntimeBackup)
+    {
+        if (x90_needsDriverReset)
+        {
+            ResetCardDriver();
+            x90_needsDriverReset = false;
+        }
+        else
+            x80_iowRet = CIOWin::EMessageReturn::Exit;
+    }
+    else if (x6c_cardDriver->x10_state == EState::SelectCardFile && x10_uiType != UIType::Fourteen)
+    {
+        if (x6c_cardDriver->x28_cardSerial && x8_serial)
+        {
+            if (x93_secondaryInst)
+            {
+                x10_uiType = UIType::Fourteen;
+                x91_ = true;
+            }
+            else
+            {
+                x8_serial = x6c_cardDriver->x28_cardSerial;
+                x6c_cardDriver->GoTo17();
+            }
+        }
+    }
+    else if (x6c_cardDriver->x10_state == EState::Ready)
+    {
+        if (x90_needsDriverReset)
+            x6c_cardDriver->GoTo33();
+    }
+
+    if (x80_iowRet != CIOWin::EMessageReturn::Normal)
+        return x80_iowRet;
+
+    UIType oldTp = x10_uiType;
+    x10_uiType = SelectUIType();
+    if (oldTp == x10_uiType || x91_)
+        FinishedLoading();
+
+    if (x6c_cardDriver->x10_state == EState::NoCard)
+    {
+        auto res = CMemoryCardSys::CardProbe(CMemoryCardSys::EMemoryCardPort::SlotA);
+        if (res.x0_error == CMemoryCardSys::ECardResult::CARD_RESULT_READY ||
+            res.x0_error == CMemoryCardSys::ECardResult::CARD_RESULT_WRONGDEVICE)
+            ResetCardDriver();
+    }
+    else if (x6c_cardDriver->x10_state == EState::CardFormatted)
+    {
+        ResetCardDriver();
+    }
+    else if (x6c_cardDriver->x10_state == EState::Seventeen &&
+             x6c_cardDriver->x14_error == EError::Eight)
+    {
+        x6c_cardDriver->GoTo31();
+    }
+
     return CIOWin::EMessageReturn::Normal;
 }
 
@@ -152,8 +227,8 @@ void* CSaveUI::GetGameData(int idx) const
     return nullptr;
 }
 
-CSaveUI::CSaveUI(u32 instIdx, u32 a, u32 b)
-: x0_instIdx(instIdx), x8_a(a), xc_b(b)
+CSaveUI::CSaveUI(u32 instIdx, u64 serial)
+: x0_instIdx(instIdx), x8_serial(serial)
 {
     x14_txtrSaveBanner = g_SimplePool->GetObj("TXTR_SaveBanner");
     x20_txtrSaveIcon0 = g_SimplePool->GetObj("TXTR_SaveIcon0");
diff --git a/Runtime/MP1/CSaveUI.hpp b/Runtime/MP1/CSaveUI.hpp
index 12ae509ff..317850420 100644
--- a/Runtime/MP1/CSaveUI.hpp
+++ b/Runtime/MP1/CSaveUI.hpp
@@ -59,8 +59,7 @@ public:
 
 private:
     u32 x0_instIdx;
-    u32 x8_a;
-    u32 xc_b;
+    u64 x8_serial;
     UIType x10_uiType = UIType::Zero;
     TLockedToken<CTexture> x14_txtrSaveBanner;
     TLockedToken<CTexture> x20_txtrSaveIcon0;
@@ -76,15 +75,17 @@ private:
     CGuiTextPane* x68_textpane_choice3;
     std::unique_ptr<CMemoryCardDriver> x6c_cardDriver;
     std::vector<TLockedToken<CSaveWorld>> x70_saveWorlds;
-    u32 x80_ = 0;
+    CIOWin::EMessageReturn x80_iowRet = CIOWin::EMessageReturn::Normal;
     u32 x84_navConfirmSfx = 1460;
     u32 x88_navMoveSfx = 1461;
     u32 x8c_navBackSfx = 1459;
-    bool x90_ = false;
+    bool x90_needsDriverReset = false;
     bool x91_ = false;
     bool x92_ = false;
     bool x93_secondaryInst;
 
+    void ResetCardDriver();
+
 public:
     static std::unique_ptr<CMemoryCardDriver> ConstructCardDriver(bool flag);
     CIOWin::EMessageReturn Update(float dt);
@@ -101,7 +102,7 @@ public:
     void EraseGame(int idx);
     void* GetGameData(int idx) const;
     UIType GetUIType() const { return x10_uiType; }
-    CSaveUI(u32 inst, u32 a, u32 b);
+    CSaveUI(u32 inst, u64 serial);
 };
 
 }