I own physically this disc, I have checked the filesystem and I don't see anything special, whereas Saturn games contain the version number in the first sector, the header.
There is another version, named 1.1, and the data track/dates (more recent) differs from the mine.
I assume that db doesn't take into account the possible different versions, until the dumpers discover several releases for the same title, with different data tracks and dates (and the naming convention is 1.0 (the older), 1.1, 1.2 and so on, according to date), or releases with EDC and no EDC. Check the db, there are 7 different release of US Tomb Raider game, with different dates and varying bonus contents.
http://redump.org/disc/11913/
http://redump.org/disc/2998/
http://redump.org/disc/12765/
http://redump.org/disc/515/
http://redump.org/disc/14809/
http://redump.org/disc/1322/
http://redump.org/disc/1471/
Don't confuse this with original/Platinum releases for a given title. They can contain identical contents.
PS: Jackal has confirmed my speculation.
On semi-vacation.
MSF/AMSF to LBA/offset and viceversa calculator: linkTo write properly occidental characters contained in japanese titles: screenshotSpaces must be the fullwidth variant: link /
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