Sony DRX510ULK & DVD -RW disks

[bah32uk]

Just got this drive, i have been able to write all formats except DVD -RW, drive just spits the disks out with errors before writing.

All other foramats work, DVD+RW, DVD+R, DVD-R but not DVD-RW.

Anyone have any experience of this drive and this problem..?

I have tried CloneDVD, DVDXCopy, & WinOnCD 6 DVD with the same results.

Have tries variouse media, admittedly i have not tries sony's media.

acorrding to the drive spec it should work.