Some DVD players are brand or type of dvd specific. Some may not play dvd r disks. Some will only play either DVD+R or DVD-R. Some players will only play a small range of dvd r brands.

1. Try a different type of disk, + or -
2. Burn at minimum speed.
3. Make sure you are burning DVD video format & not divx or data format.
4. If necessary, try a different brand of dvd r
5. Very important is not to have the overall bit rate of the dvd higher than 9.2 Mbs as some players won't play higher than that & some even lower. ie: Make sure the combination of video bit rate + audio adds up to no more than 9.0 Mbs or less. Also choose variable bit rate with maximum no higher than 8.3 Mbs eg: video target or average bit rate of 7.0 Mbs, max video bit rate of 8.3 Mbs, audio in Dolby Digital at somewhere between 192 kbps - 320 kbps. (192 kbps = 0.192 Mbs)