Please Help a few of us have had this prob!!!!!

[Star07]

I have two cpu s none of them can now burn ps2 copies over 650mb one has win98 gateway & plextor 16/10/40 with firmware 1.4 the other a dell win XP & TDK 24/10/40B I've tried almost everything to get them burn games like GTA3 or tony hawk 3 but no luck, both are capable of overburning but still no luck, the files are bin & cue the programs are fireburner the lastest, and cdrwin 3.8g please help or at least tell me the proper way to convert the bin to iso then burn it your help is GREATLY NEEDED I am at my wits end!!!! Thanks in advance