When I want to transfer dvd media on my nec3550a@4551a drive to hard disk it sometimes start transfer at lower speeds 2.5 MB/s and transfer is very slow.When I reboot my pc and start transfering from same dvd again my start speed is 8.5 MB/s and the transfer is very fast-whole dvd 4.7 disk is transfered for about 5 minutes.
And that is very often.
Does anybody know why?
Check if DMA is enabled. Maybe this is your problem
DMA is always enabled.When I have slow transfer rate I have no problem to burn dvd disc even on 16X speed.It is only issue when I read disc till I reboot.
I can’t figure what can be.
What IDE drivers do you have?
My mobo is MSI KT4AV with via kt400a chipset and instaled via 4in1 drivers.
I have no problems in transfer with my dvd rom and liteon 52327S only with nec
till reboot.