These are all printed on a much larger sheet of paper and cut down to size after. No trimming, so no bleed is necessary. By virtue of math, books need to be comprised of panels in multiples of four. A four panel book, though, is actually a folder because no binding is needed. This is most commonly Silkscreen printed.
Offset print is available for large quantity runs at an additional cost.
These come in many different forms. It is inside the folder that liner notes, lyrics, credits, etc. are most often presented. This is widely used in both professional, semi-pro and hobby studios for the archiving and transfer of audio data. Olde West will accept this as an audio master for your project, however, we generally make a duplicate of your CD-R master in our mastering studio so that we can verify the integrity of the audio and subcode data on your disc. We do not make changes to the content of your master unless you request mastering.