I ran into this problem during the last GTA:SA community race and came back to it in preparation for the upcoming one: I bought the German version of GTA: San Andreas on Steam in 2012 and am unable to downgrade this release using JPD because there is no MD5 match for the main executable.
As with other Steam releases, it appears that the main executable and audio files need to be downgraded.
D9CB35C898D3298CA904A63E10EE18D7 gta-sa.exe
3B2E4B5E2743E7C55DA40BFA7761244C audio\CONFIG\TrakLkup.dat
847311F823134257C25D5A084499FA3A audio\streams\BEATS
148E813FD82489565EA39E1C7DCDA785 audio\streams\CH
918B2391DA0537B97BEE5DECD4731C0A audio\streams\CR
CE68158764B34F4C8F62C348EA569728 audio\streams\CUTSCENE
48C2D839E7BB6A554C8A9E0A48A0ACEA audio\streams\DS
7E10C9FDF260805792A6E9FDF44FD18D audio\streams\MH
F3B8EF0CAD217550FC6901A8D7B512EC audio\streams\MR
5721F2B12041C7ABD13E78B28D01042F audio\streams\RE
857488225212CF7B17C3C10D649A205C audio\streams\RG
3359BA8CB820299161199EE7EF3F1C02 anim\anim.img
60AD23E272C3B0AA937053FE3006BE93 data\script\main.scm
9598B82CF1E5AE7A8558057A01F6F2CE data\script\script.img
DBE7E372D55914C39EB1D565E8707C8C models\gta_int.img
9282E0DF8D7EEE3C4A49B44758DD694D models\gta3.img
The RockstarNexus SA downgrader detects this release as "New Steam R2 - German".
I am aware that you are reluctant to release updates for this program since the PC version of GTA:SA is now only available through RGL, but I can help with testing if you decide to do so.
I ran into this problem during the last GTA:SA community race and came back to it in preparation for the upcoming one: I bought the German version of GTA: San Andreas on Steam in 2012 and am unable to downgrade this release using JPD because there is no MD5 match for the main executable.
As with other Steam releases, it appears that the main executable and audio files need to be downgraded.
The RockstarNexus SA downgrader detects this release as "New Steam R2 - German".
I am aware that you are reluctant to release updates for this program since the PC version of GTA:SA is now only available through RGL, but I can help with testing if you decide to do so.