Physicist (2000) - Normal Jewel case standard album.

Devin Townsend Band - Synchestra (2006). A CD/DVD special Edition, featuring the studio album and a live DVD of the band including Earth Day, Storm and Deadhead. Quite a rare edition in UK.

Z2 ( 2014 ). Features Sky Blue Album, Dark Matters album and a bonus disc, Dark Matters Raw.

Transcendence ( 2016) Rare 2Cd edition, with studio album and bonus disc with 11 additional new tracks.

As the whole package it is cheaper but if sold separately, they will be priced more. Cheaper postage too for UK.