To find java.exe, you need to show extensions in Explorer.
In XP, go to My Computer, then Tools > Folder Options > View tab > uncheck "Hide extensions for known file types".

As for the 2nd question regarding BDkeyfinder, maybe someone can answer as I never use it. As mentioned in the Backup Blu-ray thread, the guide was a very early method. At the moment I would recommend using AnyDVD HD (30 days trial).

Forgive me for being naive but can somebody tell me what you would do using AnyDVD HD? I have it running and it says that is removed the copy protection and the region. So how exactly do I backup the movie now? Sorry but I'm not at all good at this. I'm used to using DVDShrink but obviously I don't want to shrink this movie (Superbad). I want to back it up to a BD-R. Thanks for any help.

bigdog1002, it's perfectly fine to ask any question so please don't hesitate.

Right click on the AnyDVD icon in your taskbar, and choose "Rip Video DVD to Harddisk...". It will open up a window called "AnyDVD Ripper".

Then select your drive (assuming a BD/HD disc is inserted). Select destination directory and click "Copy DVD" and it will start ripping your movie.

I don't have Superbad, can you tell us what does AnyDVD says about the filesize, it might not fit BD-R.

You're right.. it won't fit on a BD-R. The main movie file is more than 33 GB. I've read some of your posts about HDBDsplit but I don't even think that would work since the 2nd file would be too large for even a dual-layer DVD+R. Any suggestions?
On another note, I noticed on another thread you said something about removing some audio streams to get the file size down. How would you do that and how much space can you typically save?

You can split into 1 BD-R, 1 DVD+R DL, and 1 DVD+R or other combinations. But see below.
Use TsRemux, call the main m2ts file, check the video streams and check the audio stream you need and remux as blu-ray. Keep the audio streams that you don't need unchecked.

On a 2+ hours movie, the lossless PCM can be around 3-5GB, a single Dolby Digital around 400-800MB. You can also trim the end credits.