I'm running Win2k. Can you find me a program that can automatically
convert all my mp3 files into 64kb/sec Ogg format? (I'm told this
makes more efficient use of space.) I'd want to be able to just give
it the name of the directory holding all 6 GB of my music and leave it
runnning overnight. It'd need to be smart enough to delete the mp3s as
it went, to avoid using up all the space on my hard drive.

Hello gremlin,

This trial version does what you ask:
[http://www.sofotex.com/download/software/4183.html].

You may want to to visit [http://www.litexmedia.com/article/] for a
discussion of the various audio formats and what some of the
advantages of each are.

I hope this is what you were looking for. Please don't hesitate to
request clarification should you need it.
JDog-ga

   Search Strategy:
   mp3 Ogg batch conversion

Keep in mind that since mp3 and ogg are both lossy formats, 64kb/sec
oggs converted from old mp3s won't be as good as 64kb/sec oggs
converted directly from wav or an audio CD.

I probably originally read this on Slashdot, but here are some
references I found by searching Google for 'convert mp3 to ogg
losslessly':
http://www.xiph.org/archives/vorbis/200206/0113.html
http://www.xiph.org/archives/vorbis/200212/0020.html