There's now some Technet Podcasts available for download on Exchange migration from 5.5 to 2K3, SQL etc. You can get these in WMA or MP3 format. If you haven't got a MP3 player then take the WMA file and drop it into the Microsoft Media player and burn to a CD-RW and hey presto you've something to listen to on your travels :-) You can also grab the sound files out of the new all-in-one TechNet webcasts, slides, transcript from the 'en' folder _8kbps.asx and _8kbps.wma. As an aside, Audacity a great tool for recording stereo .wav, .mp3 and ogg vorbis file formats.

Just point your RSS reader at: http://www.microsoft.com/winme/0506/24231/technet_fy06_mp3.xml
 
Or: http://www.microsoft.com/winme/0506/24231/technet_fy06.xml for the WMA files
 
I use Awasu and RSS bandit (bad choice of name!)
 
The exchange EXC-02 is too large for converting to audio CD, but is OK for an iPod