There are two volumes, each with 4 CD's for a total of 8. I bought them in Dresden years ago for about $1 a CD... a bargain. There is also a similarly named collection that is slightly different and is for the UK market. The ones I have are in German.
Volume 1
Volume 2
At the website enter "Swing Tanzen Verboten" in search and you will get all the versions.
Good luck. I don't know if they are still available new.