After you extract the ISO from the RAR file, use WinRAR again to extract the contents of the ISO to a temporary folder, which WinRAR will treat like any other archive, and then use DVShrink, CloneDVD2, or whatever to split or compress the DVD as desired.
-Do you believe you own your computer and shouldn't be told what you can run and do? Then say *NO* to Microsoft Vista!
-Since half the questions here involve media problems, here ya go: Only use Verbatim or Taiyo-Yuden discs (get your TYs from Rima.com, not Supermediastore or meritline). Forget the rest, no matter what "brand" they sell under. Always burn at 4x speed regardless of the speed rating of this discs or your drive. If you have burn problems with these then you have to update your drive's firmware. For double-layer discs, only use Verbatim DVD+R DL and burn them at 2.4x speed.
I don't know much about Sonic. Try creating a folder called VIDEO_TS and putting those IFO, BUPs, and VOBs in there. If that doesn't fool Sonic it's because your DVD is non-compliant. I can tell that just by looking because there is no VTS_01_0.VOB to go with the VTS_01_0.IFO and .BUP files. Look to see if Sonic has some option to turn off strict compliance or somesuch. Alternatively, you can use Nero (preferably, find a copy of either 6.6.0.18 or 7.0.8.2, and DO NOT use any other version, even more recent ones). Start Nero Burning Rom, use a DVD-Video compilation, and drag all those IFOs, BUPs, VOBs into the Video_TS folder in the compilation and burn.
-Do you believe you own your computer and shouldn't be told what you can run and do? Then say *NO* to Microsoft Vista!
-Since half the questions here involve media problems, here ya go: Only use Verbatim or Taiyo-Yuden discs (get your TYs from Rima.com, not Supermediastore or meritline). Forget the rest, no matter what "brand" they sell under. Always burn at 4x speed regardless of the speed rating of this discs or your drive. If you have burn problems with these then you have to update your drive's firmware. For double-layer discs, only use Verbatim DVD+R DL and burn them at 2.4x speed.