I was trying to use the sites GDIs with NullDC and discovered they have a problem in the convention:
Instead of using this: 1 0 4 2352 "Soulcalibur (USA) (Track01).bin" 0
It should be changed for this: 1 0 4 2352 Soulcalibur_(USA)_(Track01).bin 0
Now, every game works perfectly, like TOSEC GDIs.
(Btw, all the games with 3 tracks I tested, match TOSECs if you use psxt001z for the second track.)
But the last track apparently does not accept any king of space, so the whole GDI must be like this:
3
1 0 4 2352 Soulcalibur_(USA)_(Track_1).bin 0
2 300 0 2352 Soulcalibur_(USA)_(Track_2).bin 0
3 45000 4 2352 Soulcalibur(USA)(Track3).bin 0
Which would force a change in the last file name.