Redump Forum

I read that topic about the D8 command, but didn't know what to do after I had +559. The topic isn't as clear as your post about going back or forward sectors. You guys need to add this D8 write offset detection to the dumping guide on the main page. It's very helpful for data only dumps.

<r>I'm getting a weird write offset for this disc. I dumped it with a Plextor 760A with a read offset of +30. Running the D8 command provides this output:<br/>

<CODE><s>[code]</s>CB2AAB2343258DA759C6C6AEAE80001C
7C759D9B55D70362FD95FDD37DE19DF4
15FB337F299C629595D3536181941C13 ...

<t>The data is mode1, I wonder if that's why I'm having problems. I dumped it again with the NEC drive and scanned the image with cdmage, it found 1 corrupted sector, which was fixable. Then I dumped it with the cd-rom and it had 3 corrupted sectors, which were also fixable. The two images now match ...

<t>This should be a data dump only, but I can't get consistent dumps from my drives, an NEC DVD_RW ND-3550A and MATSHITA CD-ROM CR-585. This would be a new dump so I can't compare to anyone else's. I'm assuming the NEC drive is dumping it correctly because it can detect gaps and seems to be a better ...

Someone has stickied the relevant thread for Gran Turismo 2 in the dumps area.
/viewtopic.php?t=1155

<t>It is possible to "wipe" garbage data from gamecube games, which reduces their file size. However, it is still an iso. Also, if you wipe an image to reduce it's size, it cannot be read by a real gamecube. The gamecube console expects a specific file size, around 1.4 GBs I think, which is why ...

I believe that is correct. When I was dumping gamecube games, a gcm file was the same as an an iso.