I have the 2.00 version of GTA San Andreas as jewel case. I like 2.00 because it is most stable official version of GTA SA, but I had always wanted an ISO for 1.00 for best mod support.
I believe I have found an ISO for US version 1.00, but I can't find any other US 1.00, only one Euro 1.00 version. Not all files match between those, so without real disc it is hard to know if it's real or corrupted. I can easily verify my 2.00 ISO because as I said, I have the 2.00 jewel case.
I have made sha1 hashes of the US 1.00's contents, and if anyone could please verify with your US 1.00 copy, I would greatly appreciate it.
sha1 hashes: http://paste.ubuntu.com/11923532/
You can use program "RapidCRC Unicode" to generate the hashes. Then use http://text-compare.com/ to save time.