What is this all about then? * Mixer: Producing the Mix: The virtual mixer of Logic Pro 6 controls a maximum of 255 audio tracks, 64 audio instrument tracks, and a nearly unlimited number of MIDI tracks. Each audio and audio instrument track can display and use up to 15 insert plug-ins and 8 effect bus sends. Logic Pro offers over 50 integrated effect plug-ins and supports additional AU format (Mac OS X) or VST format (Mac OS 9) plug-ins. Logic Pro 6 also features an exclusive collection of software instruments as well. As with the effects, additional instrument plug-ins are integrated via AU in Mac OS X and via VST2.0 in Mac OS 9. The parameters of software instruments and effects, as well as the controllers of the mixing desk, are integrated into the comprehensive automation system of Logic Pro 6 - allowing full, total recall mixes. The mixer further supports a range of hardware controllers, spanning from simple models for the home studio up to high-end professional control surfaces that are deeply integrated into the Logic system. Your final mix is written to your hard drive in industry standard formats such as: SDII, WAV, AIFF and MP3 (in Mac OS X). Logic Pro 6 also features support for 12 surround formats, making it ideal for those involved with soundtrack work.