Can you install a programme on your works PC?

If so, install this;

http://www.nch.com.au/rip/index.html

It's free (legal downloadable .exe file from their own site ^^^ ), and SOOOO simple to use. You can allow it to connect to a metadata service via the internet to fill in track and album data, and it's pretty quick too

BTW, you do realise you can take the files home on a flash drive in WMA form and still play them on your PC at home right?