Would someone be able to tell me how large the main DVDs of these series are? (A full disc backup) Or how much compression is required to fit them on one DVD5? I'd like to do a full disc backup of these series with DVD+R DL discs but I don't want to spend $200+ on DVDRs. I also don't want to split the DVDs, because that would be 100 DVDs per series. 50 is a lot better. (when do you think DL will become affordable? .75 each for example) I searched for this stuff but could not find these details, if you can, please let me know.