For a portable drive, the DRX-S77U performed relatively well when writing to DVD+R and DVD-R media, taking a little more than 12 minutes to burn an entire 4.7GB DVD. It also turned in some respectable times when writing to other types of media. However, the writing quality could have been better with some DVD+R DL discs. When it came to reading DVD's, the DRX-S77U was able to read single layer DVD-ROM's and most recordable media at 8x but slowed to only 4x when reading DVD-Videos.



Link: CDRLabs