Description from the off. site:
Just open a set of Jam Pack - and hundreds of professional musicians and sound engineers will be at your disposal. In each set of Jam Pack - thousands of cycles, Apple Loop, and dozens of virtual instruments.

Ingredients:

Remix Tools
Mixing Tools
Like to experiment? Then this set of Jam Pack - for you. Designed for fans of electronic dance music, working in the styles of hip-hop, techno, trance and R & B, it provides sets of rhythms, sound effects, synth sounds and rhythms of classic drum machines Roland.

Rhythm Section (2 discs)
If your group has no firing pin, it does not matter - in this section you will find a set of percussion instruments with natural sounds. Create the drums of different sets of rhythms, tracks, and combinations thereof. A wide range of percussion sounds,you can create realistic songs. In the "rhythm section" and there are several dozen musical instruments: 10 strings, 10 bass and 10 drum kits.

Symphony Orchestra (2 CDs)
This kit will allow you to feel like a conductor of a symphony orchestra with a full set of instruments, from brass and woodwinds to strings and percussion. Play classical music or add a powerful sound of a symphony orchestra to their compositions in the styles of pop, rock and hip-hop, created in GarageBand.

Voices
Soloist, a group of backing vocalists and a chorus - now for your songs will always be talented performers. Choose from more than 1500 cycles with the voices of Apple Loop professional soloists and choral ensembles of various genres and styles. Also, you are invited for more than 20 virtual instruments, including voices, choral ensembles, and amazing drum kits that are based on the sounds of human voice and body.

World Music

With this set you will go to a musical journey through the most exotic places of the planet. The set, recorded during the World Expedition, the richest collection of loops and instruments - ethnic percussion, exotic strings, folk woodwind instruments.Section "Music World" presents dozens of different genres and styles of performance. This is a real encyclopedia of musical traditions of different countries.

Platform: PPC / Intel universal
System Requirements: MAC OS X 10.5 or later, PowerPC G5 2,0 Ghz / Intel, 512Mb RAM, 24 GB HDD, Quick Time 7, Garage Band Logic Pro Logic Express
Language: English + Russian