At the moment the dominating format is ordinary cd audio, but a sizeable part of this sale will probably shift to compressed formats as Mp3 and download, which are both more practical and cost effective solutions.
At the present time the first six titles are prepared in cd audio and will be on the shelves of the book stores around winter vacation in February. This timing of the release depends on the use of the media which often is when people are on the move e.g. going on holiday.
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