Presumably your .cue file is correctly named -
Tomb_Raider_2.cue
To match the .bin, and the first line of any .cue you use will be:
FILE "Tomb_Raider_2.bin" BINARY
My .cue looks different. Many PREGAP and INDEX-times are different. :unsure:
I couldnt understand the reason for deactivating the .bin-files in r18.
The .bin files are not deactivated, just hidden to keep folders with multiple games tidy! As the .cue file needs to be correct to identify the locations of cd-audio tracks, it gets prominence. If the .cue appears incorrect to PCSX, it will display the .bin instead - but it will still need the .cue file to be present and correct in most other respects. For example, the .cue MUST have the exact same filename, and it will still try to use it to identify the position of audio tracks.
When I experimented (see the link in my previous post to the PCSX thread) I found that if I changed the extension to all capitals in the first line of the .cue file, BOTH files showed up like they used to. You could test that, by changing your .cue file's first line to:
FILE "Tomb_Raider_2.BIN" BINARY
Is your Tomb Raider 2 a PAL (UK/Euro) release, or an NTSC (US/Japan) release or other? If it's the English PAL release, you could use my .cue and see if it works.
Backup your .cue somewhere else, then just copy the entire text of my .cue above into yours, overwriting everything in it. Make sure the FILE line at the top has the exact name of your .bin file.
If your TR2 isn't the UK/Euro PAL release - it probably isn't if it's .cue is so different, you may need to use a .cue file that is specific to whatever version you are using - you can get most of these from redump.org:
Under the heading "Tomb Raider 2":
http://redump.org/discs/quicksearch/tomb-raider-2/
Under the heading "Tomb Raider II":
http://redump.org/discs/quicksearch/tomb-raider-ii/
When you select a game version to see it's details, you can download a cue sheet for that version in the 'downloads' bar just above the game title. Remember to change the FILE line so that your exact .bin name is there instead.
If you are unsure what version it is, when you run the game (under r17 - which will also confirm that your .bin is good or not) and press space to go to the PCSX menu, you should see the "SLES" (or similar) identity at the top of the screen in blue - that will help you identify which version of the game it is.