If the gams is protected, you could try using CloneCD if your burner is 100% compatible. Checkk all the sub-channel data boxes and RAW-DAO in read mode. In write mode check don't repair subchannel data and burn at no more than 4x.

If you MUST patch the game, Rename the .IMG file produced by CloneCD to .BIN; apply your patch; rename it back to .IMG. Then burn it back to CDR. This will preserve all sub-channel data.

Might work.