Problem burning CDRW benq 1620



Hi, i got retail benq DW 1620 with B7T9 firmware.

I was backing up data files to cdrw disk with nero v6.6.0.8 however when i attempt to read data from two different cd re-writer (benq, teac) it was unable to read the data. But when i use the DW 1620 to read the data it was able to read it.

note it is fujifilm cdrw 4x

Please advice.