There are currently two kinds of Track Packs on the site: song based and collection based. You will sell more loops if you organize your single loops into one of these two kinds of Track Packs.

Before you upload a Track Pack, you need to create a DEMO MIX for it.

For a song based track pack, create a loop the full mix of all of the component loops being played together, similar to this:

http://www.beathive.com/clientReq.do?trackpackId=141

For a collection-based track pack, get a random sampling of the loops and paste them, one after the other into a new audio file. If there are 13 loops in your collection, you could put 6 or 7 of them in the demo mix. The idea is to give the user a decent idea of what's in the pack. They can then click on the Track Pack icon to see the Demo Mix and preview all of the pack loops like this:

http://www.beathive.com/clientReq.do?trackpackId=172

DEMO Mixes must be under 5 megs in length, which is around 28 or 29 seconds for most AIFF and WAV files. The DEMO MIXES do not need to be ACIDized or APPLE Looped.