Going from tape to digital requires a analog-digital converter. These can be outboard gizmos, they are built in to sound cards (quality varies) and they are included in a very nice device made by the Alesis company called a masterlink. With the masterlink, you can feed your line out from the recorder into the machine, which records it on an internal hard drive. From there, you can cut the audio into separate tracks, adjust volume levels, crop, fade, and add limiting (very useful) eq, and compression.