The most important detail for any investigator is this:
One retailer’s description captures the essence of these collections: a “high-quality premium archive of recent years united on a jam-packed DVD, professionally produced, current, and license- and GEMA-free for use”. MAGIX Soundpool DVD Collection 13 for Music Maker Soundpools
Typically provided on a single DVD containing several gigabytes of WAV files (16-bit / 44.1 kHz / stereo). The most important detail for any investigator is
: Drums, basslines, synthesizers, pianos, and vocal snippets. and vocal snippets.