642/37 and DL media

Evening gang! Just a quick question, I’ve got the 642/37 and it plays damn near everything I throw at it. I haven’t dabbled in the DL media yet, does the 642/37 have any issues with backups done on DL media? Thanx!

No direct experience with the 642, but the consensus is that +R DL booktyped to DVD-ROM is one of the more widely compatible recordable disc types.

One or two +R DL experiences here

As always, you should buy good quality blanks.