CDImageMemory: Fix SBI loading

src/common/cd_image_memory.cpp

@@ -110,20 +110,7 @@ bool CDImageMemory::CopyImage(CDImage* image, ProgressCallback* progress)
   m_filename = image->GetFileName();
   m_lba_count = image->GetLBACount();
 
-  if (!image->Seek(0))
-  {
-    progress->ModalError("Failed to seek to start of image for subq read");
-    return false;
-  }
-
-  progress->SetStatusText("Looking for invalid subchannel data...");
-
-  CDImage::SubChannelQ subq;
-  for (LBA lba = 0; lba < m_lba_count; lba++)
-  {
-    if (ReadSubChannelQ(&subq) && !subq.IsCRCValid())
-      m_sbi.AddReplacementSubChannelQ(lba, subq);
-  }
+  m_sbi.LoadSBI(FileSystem::ReplaceExtension(m_filename, "sbi").c_str());
 
   return Seek(1, Position{0, 0, 0});
 }