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Questions about discs with only one audio track
Posted: Thu Jun 18, 2009 6:31 pm
by RetroGamer
I have some doubts about dumping disc with 1 data track and 1 audio track that the guide doesn't explain.
-how to detect the gap manually?
-how to add that gap to the audio track? the SAT dumping guide talks about the command "fix track 2.bat" to fix the audio track in this situations... so, this command adds 2 sec of silence to the audio track? it's ok to use that tool for other systems too?
Thks in advance

Re: Questions about discs with only one audio track
Posted: Fri Jun 19, 2009 12:12 pm
by F1ReB4LL
RetroGamer wrote:-how to detect the gap manually?
Only by subs. You can try to use CloneCD, though, it usually detects the gaps properly in this case.
Re: Questions about discs with only one audio track
Posted: Fri Jun 19, 2009 2:01 pm
by Haldrie
The best way to tell what the gap is for these discs is to count how many sectors you had to go back from the start of track 2 until you saw the garbage data. If you went back 150 sectors then it's a 2 second gap, 225 sectors then 3 seconds, ect...
Re: Questions about discs with only one audio track
Posted: Fri Jun 19, 2009 2:04 pm
by F1ReB4LL
It's not the best way, especially if there are data sectors in pregap due to a mastering error (see Gale Racer or Gunbird). I'm sure there's enough potentially bad PSX dumps already due to this logic and I want to preserve the Saturn section from such dumps with 'assumed' gaps.
Re: Questions about discs with only one audio track
Posted: Fri Jun 19, 2009 2:25 pm
by iR0b0t
Haldrie wrote:The best way to tell what the gap is for these discs is to count how many sectors you had to go back from the start of track 2 until you saw the garbage data. If you went back 150 sectors then it's a 2 second gap, 225 sectors then 3 seconds, ect...
This way can be used, but by experience users.
Re: Questions about discs with only one audio track
Posted: Fri Jun 19, 2009 3:55 pm
by F1ReB4LL
I've just named 2 titles, where this 'method' doesn't give a proper result (experienced users will get the wrong result as well).
Re: Questions about discs with only one audio track
Posted: Fri Jun 19, 2009 5:15 pm
by r09
If you have a (real) Plextor drive you can use PerfectRip, it should detect the gap properly.
But aside from that, this is a real annoyance. Has anyone tried to contact Andre Wiethoff and tell him about this issue? Perhaps he'd be willing to fix it...
Re: Questions about discs with only one audio track
Posted: Fri Jun 19, 2009 5:24 pm
by pepsidrinker
He is working on the program again, he just recently released beta 5. He might put more effort into fixing the bug as he said he wants to get some issues fixed before next release.
Re: Questions about discs with only one audio track
Posted: Fri Jun 19, 2009 5:34 pm
by iR0b0t
F1ReB4LL wrote:I've just named 2 titles, where this 'method' doesn't give a proper result (experienced users will get the wrong result as well).
F1ReB4LL, if you can calculate the last used data sector + add the postgap, you will see that there exactly 151 sectors pregap for "Gale Racer" and 152 sectors pregap for "Gunbird" Track02, and that without any sub analysis !!!
Re: Questions about discs with only one audio track
Posted: Fri Jun 19, 2009 7:26 pm
by RetroGamer
Thks to all of you
F1ReB4LL wrote:It's not the best way, especially if there are data sectors in pregap due to a mastering error (see Gale Racer or Gunbird). I'm sure there's enough potentially bad PSX dumps already due to this logic and I want to preserve the Saturn section from such dumps with 'assumed' gaps.
So we should check the whole gap with sector view in raw mode to verify if there's data?
and what about the other question?
