Someone else (Harth) did the Drama CD. And then I v2'd it with him fixing all the mistakes (we hope anyway) and improving word flow. It's somewhat significant at certain spots and has the official Drama CD cover as the new video image with it too so you probably wanna grab it if you have the v1. Anyway links below:
If you got that old v2 that was up for a few minutes install this font here.
P.S. - Tangentially related, but Kore wa Zombie's getting a 2nd season. S1 had its ups and downs, but I like the manga/novels so I'll still watch it anyway.