You can learn about each individual file from the OSA Video Sheet Music Purchase page. If you think you would prefer to purchase a file or multiple files in the USB format (which offers more sophisticated editing options), then inquire below for a price quote (which includes costs for the USB flash drive and postage). After payment, a USB will mailed to you with your selections. Remember that will need a Digital Audio Workstation (DAW) installed on your computer to best utilize your USB audio files. Files will be available in two DAW formats-Reaper (recommended) or Cubase. When ordering, let us know which format you prefer.