It doesn't work, certainly not for Singstar anyway. I've tried it multiple ways and the result is always the same. Disc inserted/Discless, BD-EMU enabled/disabled, Direct Boot enabled/disabled, Internal/External and various redirects for the /dev_ps2disc mount. If the ps2disc.txt is there, and you do the disc swap, Singstar will tell you that it is not a Singstar disc inserted, this is with a redirect to an extracted PS2 Original Singstar Disc. If you delete the txt file, things work normally again where you can swap for Original PS3 and PS2 Singstar Discs.
Originally Posted by Someone88
PAL 30003 v4 GH-010 Messiah1, neohex de-macro chip
PAL 30003 v4 GH-013 Neo4
PAL 39003 v7 GH-022 Matrix Infinity
PAL 50003 v10 GH-026 Ghost2
PAL 35003 v4 GH-012 DMS3