Damn, I upgraded to 2.50 yesterday. As noted before - it should be possible to run it from proper BD media. There is a BD-J code that allows you to download other code through socket and run it then (both have to be signed by the same certificate). This allows having just one disk and use code from the net. Such disk can be ordered from http://bdlive.com/bddev/handraiser.form or created from code available from https://hdcookbook.dev.java.net/