Audio : Archive
An archived audio file should be as close as possible to its original form (i.e. minimal compression, format changes, etc.) and should be stored on some durable or secure (i.e. backed up) medium. For archiving audio we recommend backing up the original recording or any lossless or uncompressed audio format.
Standard format: A linear PCM 16-bit 48kHz .wav file.
Archive option #1: Save on flash drive or hard drive.
Tutorial: Saving to a flash drive or hard drive
Archive option #2: Save image file to a CD/DVD.
Tutorial: Saving to a data CD/DVD
Tutorial: Formatting an external device for Mac
Linear PCM .wav file (recommended):
Tutorial: Save as linear PCM .wav file in QuickTime Pro