Kid, it's been a while since you posted your question, but if you are still curious, I had no issues with the soundtracks. However, TGBU has been re-released in a better, beefed up version, so if you are interested I would buy movies separately. There is no advantage to buy the movies in a set because you can find them individually almost anywhere for $9.99. The new version of TGBU is more expensive, of course, but worth it. I wouldn't be surprised (or maybe I should just say that I hope) that new cleaned up versions will appear of the others.
Another option is to buy the DVD's used. I hardly ever buy CDs, DVDs or Books new anymore. Check out Amazon.com. Look for the item you want and then click on the "Buy it used" link. I have had no problems buying that way. Just read the descriptions and look at the sellers' feedback... just like Ebay.
Good luck.