TombATI is an alternative way to play Tomb Raider I and Unfinished Business. It's a native Windows app and hence does not need Glidos to run it. It does need the GLRage wrapper created by the developer known as Baracuda415 on, but I've created an archive here: TombATI.exe, which is already set up. All it additionally needs is the level and video files from the CD. You just need to copy the folder DATA and FMV from the CD to C:\TOMBATI over the top of the ones already there. Then you can run

TombATI has been updated so that it can use the higher quality Play Station in-game movies. If you want those, rather than copy the FMV folder from the CD, install this archive: Higher quality FMV files for TombATI.

There are also HD textures for this version. I've created an archive for one set here: HD Textures for TombATI. Install these after installing TombATI and they will work without change of configuration.

Others are available from the downloads page of the Tomb Raider Xtra site. To make these work, you need to edit the files

to change the value of
to the name of the texture pack.