Definitely a media issue. 1. Older DVD Players don't care for DVD+R, unless you set the booktype/bitsetting to DVD-ROM (there is an option to do this in the latest DVD Shrink). However your burner will need to support it. Your burner is a re-badged Lite-On drive so I am pretty sure it is possible. 2. Sony standalone DVD Players can be fussy with media and Memorex don't use the best quality manufacturers to produce their media (ie CMC Magnetics, Prodisc). Memorex DVD+R can be decent media. Some of them are produced by Ricoh and they are excellent. However, there is no gaurantee with what manufacturer you are getting from batch to batch so I recommend going with a better manufacturer. Click on the link in my sig for more info. <