backing this game up should be as easy as Boiling Point and Imp. Glory.
1. Make an image with alcohol using "read DPM2 on high setting
2. burn it 2 DVD and play
2.1 download anti blaxx and use it to play with image
therefore u need this settings:
1 select ur alcohol folder (doesn't work for me with d-tools)
2 choose: restore: after game exits
method: hide entrys
3 then select game executable and protection(securom7)
4 select "mount image", take device0 and select "use alcohol120%)
5 select where the image is located
6 rightclick on taskicon and choose "run game"-->GTA san andre
troubleshooting:
sometimes there are complications and u get the emulation error again.
If that happens simply try again (maybe 5 times

)
If it still doesn't work manually unmount the image and then try again(2times)
If that doesn't work try it with daemon tools.
Still no effect?
Maybe u should pray 2 god?!