I had my Plextor for about a Month now and things have started to go a bit strange. I used to be able to burn 4gb DVD-R in about 20mins, CD-R in 2mins, read CD-R in 4mins and DVD-R in about 10mins.
At the Time i was using plextools2.11, Roxio EMC7, DATASAFE dvd media and the 1.04firmware.
BUT NOW it's all gone a bit south. write times are down at 0.7X for DVD-R, 8x max for CD-R, read transfers are also very slow at about 1.5MByte/s.
between this time i have updated the firmware to 1.06, updated EMC7 and burnt several audio CDs. We can eliminate the EMC7 update because plextools is also suffering from low burn speeds.
So has the firmware knackered my drive or is it burning all them audio cds?
The problem is that i burn the audio cds at a very low 2x so i wouldn't really notice any speed drop since it's below what seems to be the new max speed of the drive.
i'm running it in master mode DMA with a old CD-ROM in slave DMA. The other drive works fine. Im using windows XP with lastest updates