I use a Pansonic DMRE50, and it has a flexble recording opition, where you input the length of what you are about to record, and it will optomize the bit rate. to fill the disc. The maximum quality is still 1 hour, so a 30 minute recording will only fill half the disc. Its not always a great idea to absolutly FILL the disc, as the outermost edge of the disc is the most prone to read errors on DVD-R (at least that what Ive read) its never been a problem for me, and Ive also noticed that the last 3% of discs I burn are unfilled no matter what, and when I check the content of the disc with DVD Decrypter, thet ar usually under 4.7 gigs. They usually have 4.4 to 4.5 on them. ROTJ is over 2 hours and 10 minutes, but it still looks great on my recording. Getting a high bit rate is only half the battle, as many of the recording gurus at DVDRHELP will tell you, its there are many other variables. The hardware and software used, and how it performs to correct the image, and not lower the quality.