Not since version 2.0 on my 3 players. I had a couple of SD DVDs that were not recognized on any of my 3 second gen players as a DVDs until 2.0 Firmware. Other than that zero erros with anything/They have played bunches of Netflix HD.. purchased SD... and SD DVD... literally hundreds of viewings and zero errors. Something about the way those 2 SD DVDs were mastered the Toshes did not like until V2.0.
I have a Cyndi Lauper DVD that neither an Oppo 981, or Sony NC85H would play without the decode breaking up and the Toshibas HD players all played it fine. It was a terribly noisy transfer and really looked bad over all. I really like the material on there.. With the latest 2.7 on the XA2 it looks like a totally different transfer.. amazed at the difference.
Mits WD-92840 92" DLP - Lumagen Radiance XS, Martin Logan Motion 40s, Ascend Sierra 2s
Older 58" Panny Plasma -DVDO DUO, JBL Studio 530
Pioneer AJs, PSB Images, Usher S520, JBL HLS-610, Definitive SM45, MusicHall Marimba