Hello, I was wondering if anyone who has these units can tell me what is the cheapest brand of blank dvd-r's will work with these machines? I had the Panasonic E-30 and the Apple DVD's and TDK worked fine. I tried to use cheaper ones, like the Computer City branded ones and it froze up the machine. I'm planning on getting the E-50 soon and will need to back up a lot of stuff so just wanted to see if I can save some money. I know there are a lot of cheap blanks out there but I'm scared to try each one to see if it works because when my machine froze the first time I almost had to break it to get the disc back out. Thanks!