For that amount of data, save some time and energy and get an external drive to back up their stuff. If you did get it all on DVDs, it would take hours to get it back on there.
As for the slow burning, maybe the medium is the problem. Not all work well with all drives.
Actually, in 64-bit Windows, I believe files that would normally go into the system32 folder now belong in the SysWOW64 folder. I know I've had to copy and register .dll files there when an installer fails (such as Flac Frontend).
What do you mean by pirate. I was trying to make a back-up copy of a Dvd that I own.
Taiyo Yuden is inferior to Verbatim?
The date was before release date. Unless the time zones are different.
I would be careful pointing to "codec" sites. A lot of sites consider these "warez". Lots of gray area since some of those codecs are reverse-engineered (copyright infringement). Proceed with caution. You're asking for a virus most of the time.