yeah i did eject most of them....except may be 1 or 2 which caused that no additional sense info msg...after going through the overheating thread i feel may be the crappy burns are due to heating..i have a ROM drive just below the Writer and room temp would be arnd 27-28'C ...i have a P4 prescott, CPU temp hovers arnd 47-53'C( as measured by intel active monitor) under normal conditions and max out to 63'C under full load....system(MB) temp around 39-44'C. I think i shoud lower the ROM drive so as to leave a slot open between the two drives and then check the burns/scans.
Another problem here is we dont get TY disks here....MBI is the most common....most of my disks are MBI and some are SONY....even the sony ones( brought from s'pore) were not that gr8. Anyways thanks guys. I'll post the results soon.