Help! I keep getting an error when installing GTA SA!

[Jocken]

Alright, I've been googling around for like ever and I haven't really found anything useful to help me out with this issue...

A while ago I tried installing GTA SA (Grand Theft Auto: San Andreas) on my PC. A bit through the install it gave me an error, so I said "fuck it" and didn't bother to try again.
So today I decided to try again, and this time when I opened it it said "Play GTA SA" instead of "Install"... Of course, hitting "Play" didn't work.
So, I tried uninstalling it, and it gave me this error:
_______________________________________________________________
>SetupDLL\SetupDLL.cpp (469)
PAPP: Grand Theft Auto: San Andreas
PVENDOR: Rockstar Games
PGUID:E0303B6A-C675-4102-95DA-C013625BFA99
$10.50.0.125
@Windows XP Service Pack 2 (2600) IE 7.0.6000.16640
________________________________________________________________
So, I hit ok and then it gave me this message:
_______________________________________________________________
InstallShield Wizard

Setup has experienced an error.

Please do the following:
-Close and running programs
-Empty your temporary folder
-Check your internet connection [Internet-based setups]

Then try to run setup again.
Error Code: -5001
_______________________________________________________________

Aight, so I googled a bit and a page told me to explore the cd and double click "setup.exe". Well, this worked and the setup started, but less than halfway through the setup it gave me this error:
[IMG]http://i44.tinypic.com/1et3mb.jpg[/IMG]
So, I tried hitting "Retry" and then this popped up:
[IMG]http://i41.tinypic.com/332qfqd.jpg[/IMG]

Well, after looking back at the first window that popped up, I decided that the best thing to do was to try and delete "SPC_GA" and then hit "Retry". So, I did that and then this popped up:
[IMG]http://i40.tinypic.com/96xj51.jpg[/IMG]

I've tried using CCleaner to clean my registry, but that didn't work.
Then I tried using RegCleaner to just remove everything related to Rockstar Games on my computer, but RegCleaner keeps crashing on me whenever I try to remove something using it!

Please, help me out!

Cheers,
Jocken

[Xeon06]

CRC errors usually mean a problem with your CD (scratched or something like that). I used to get this, if you're lucky, you can just ignore it and play the game normally.

[FPChris]

Catastrophic Failure.

Call Rockstar.

[Jocken]

[QUOTE=Xeon06;21835740]CRC errors usually mean a problem with your CD (scratched or something like that). I used to get this, if you're lucky, you can just ignore it and play the game normally.[/QUOTE]

Yeah, I tried ignoring the error and playing it, but it doesn't start.