See point 10 at <http://www.amazon.com/s/ref=nb_ss_1_6?url=search-alias%3Daps&field-keywords=dvd-dl+media&sprefix=dvd-dl&sprefix=dvd-dl > Paul Moortgat On 28 Sep 2009, at 02:35, Stephen Spector wrote: > To the best of my knowledge, there is no such thing as DVD -R/DL ... > > Stephen > > On 2009-09-27, at 5:31 PM, Robert & Susan Lloyd wrote: > >> For dual layer, the burner on my Mac Book Pro will only burn a a >> DVD +R DL. It won't burn a DVD -R DL. Incidentally, the DVD plays >> okay in my DVD player. >> >> BobLL >> >> James Asherman wrote: >>> Wow didn't even really notice that. >>> SECOND PAUL's OPINION. Don't EVER give anybody a +. >>> J >>> On Sep 27, 2009, at 7:37 PM, Paul Moortgat wrote: >>> >>>> It might be that you need a -R DL, not a +R DL. >>>> >>>> Paul Moortgat >>>> >>>> >>>> On 28 Sep 2009, at 00:21, Robert & Susan Lloyd wrote: >>>> >>>>> I've been burning DVD +R DL. They play fine on my macs, both >>>>> layers. They lose the second layer (apparently) when I try to >>>>> play them on My Dell pc (it plays the first half fine). I've >>>>> tried two different makes of DVD: verbatim and (I think) >>>>> memorex. I've tried burning them with DVDStudio Pro, with disk >>>>> utility and with Toast. No difference with this problem. I'm >>>>> quite sure that the DVD player on my Dell should play them. >>>>> >>>>> Any suggestions of what I might try next? I'm trying to get a >>>>> working copy to the person who is funding the replication, and >>>>> it's nerve-wracking. >>>>> >>>>> If the DVD is replicated, will that solve this problem? How do >>>>> I know ahead of time? >>>>> >>>>> BobLL