I have a Sony Handycam that writes to the mini DVDs. The picture and sound quality is great.. but it is a pain in the behind to upload any video to your computer because it saves it in .vob format like a regular movie DVD. I discovered a program once upon a time that allowed me to copy the files to my computer so that I could combine them onto one standard size DVD but it was arduous and time consuming. Perhaps they come with this software now, but mine did NOT and it drives me crazy.
Speaking of which, if anyone knows a way to do these things that doesn't cost a fortune please let me know