public long Preserve(long offset, byte[] decrypted, long size)
{
int x = (int)(offset / WiiPartitionSection.GroupSize);
int byt = x / 8;
int bit = 1 << (7 - (x % 8));
_flags.Write8(byt, (byte)(_flags.Read8(byt) | bit));
long written = 0;
for (int i = 0; i < size; i += 0x8000)
{
_hashes.Write(decrypted, i, 0x400);
written += 0x400;
}
return(written);
}