Greetings blutach,
Actually, I went out yesterday and picked up a 10 pak of Verbatim +R DLs. I had also done some additional research on the web and located a 1.22 firmware upgrade for the Pioneer 110D by The Dangerous Brothers that was a hybrid mixture of the standard Pioneer 1.22 (no bitsetting) and Buffalo 8.20 (OEMed 110D with bitsetting) firmware (CROSS822.ZIP) Flashed the drive and all was good. No support for the 110D as far as ImgBurn and bitsetting, but maybe that will change upon his Lordship learning about the availability of this new firmware release.
Indeed, the +R DLs worked like a charm, but as mentioned, there's no current way to set the Booktype from within ImgBurn. Is there some other method you're using?
As for the better format, I'm still not convinced. From everything I've read, DVD-R is still the closest thing you can get to a pressed DVD, moreso than DVD+R, which is why I held out so long for the Pioneer 109/110 units. Even the oldest home DVD decks and PS2s that I've tossed -Rs into have never hiccuped once during playback. Unfortunately, the same can't be said for +Rs.
Anyway, it's really been an eyeopener to discover (via this forum) that -R DLs don't function similarly to +R DLs in regards to the Layer Break. How Pioneer could overlook something that critical is beyond comprehension. Hopefully that little oversight will get remedied in the near future, along with newer firmware. Otherwise I'm not really sure what I'll end up doing with these -R DLs...
Thanks for taking time to reply and perhaps his Lordship will even grace us with a comment about bitsetting support in a future version of ImgBurn. Best regards, eh?