ISS PRO (PSX) write offset

[RetroGamer]

I don't know if this should be posted in the "Fixes and additions" so sorry if it's misplaced.
I tried to make a verification dump of ISS PRO and my drive couldn't dump the audio tracks because it has a read offset of +48 and this always happens to me in PSX discs whith a -647 write offset the problem is that the dump in the DB is a +2 offset.
I dumped the data track and after fixing, it matched this dump https://redump.info/disc/1755/
So what's wrong in this picture? 3 dumpers can't be wrong... so the info in the DB is wrong (not the dump) or my disc is different...
And anyone knows why this dump https://redump.info/disc/5470/ is v1.1? i mean the info is the same in both dumps (even the EXE date)

[pepsidrinker]

Because the game was pressed with two different offsets. That's the beauty of our method, write offset isn't a problem. As for the other question the data track is different and so we make one 1.0 and the other 1.1.

[RetroGamer]

Thks for the explanation, pepsidrinker.
well it seems that, for me, the write offset sometimes is a problem 
i mean the info in the feft column lol but why one dump is 1.0 and the other 1.1? it also could be the other way around...
and i think that the two write offsets should be in the info...

[pepsidrinker]

Well when someone dumps the game with -647 it would be added. I don't know off hand but I dumped a game with a different write offset then the one posted and it has both write offsets in the db. We can't take your disc that isn't dumped and add -647 to it because your disc audio might be different, for example my two dumps of Shining Force CD, both discs had the same offset +222 but the audio was different with the data track the same.

https://redump.info/disc/2702/
https://redump.info/disc/3875/

As for the other, it could be reversed, someone else will have to explain this one further.

[RetroGamer]

I understood that. i was just assuming that at least one of the dumpers had the other offset and it was missing from the DB

Well, for now i can't dump that disc (that disc and many others... )

[RetroGamer]

Disc dumped, -647 offset confirmed