Does it really matter?...

[spooky]

Well i also agree and suggest buying your own reg ### for CDRWin, its only a few £'s or $'s but reading the reference's to CloneCD got me a little concerned, no body mentioned the fact that it may not be 100% compatible with your burner and therefore would not be worth buying! If your burner is not compatable then this could explain your problem.

650mb or 700mb is not important at all infact there are NO PSX titles that require a 700mb disc.

I'd recommend downlading the evaluation version of CDRWin and running it in demo mode, o.k. so you will be restricted to 1x speeds (read and write), but at least you should be able to get going in the right direction!