[Web-Junkie]

@bertJ: Can your burner do bitsetting, either out of the box or via firmware update? If so, change the booktype for DVD+R DL to DVD-ROM then you can burn a DL disc and see if your player will play the disc! Looking at that player it supports DVD+R so it 'may' accept a +R DL if the booktype is set to DVD-ROM, like all pressed/bought DVD's are set to.

DVD-R DL always have the booktype set to DVD-R as I think it's not technically possible to set it to DVD-ROM, so burning a DVD-R DL will 'appear' as DVD-R to the player. Not tried a DVD-R DL disc, even though my NEC 3500 supports -R DL and +R DL, although +R DL seems more popular but Verbatim manufacture both -R DL and +R DL format discs, the only DL brand I trust in my burner.

The thing is, is it worth spending say £10 to buy a -R DL and a +R DL disc, burning them and finding it may not work on your player, or buy a cheap £30 player that will play almost anything?