I transfered directly from tape recorder to PC using a double "male" ended jackplug (plugged into the headphone socket of the tape recorder), and used Nero as the recording software on the pc. Getting the volume balance was tricky, to get the best recording with minimum distortion. Trial and error was best.
Tapes were very brittle (40years + old), and sound quality was worse than I remember it being, but I may be too used to CD's and digital radio quality for too long.
Used Cool-Edit to edit the tracks once recorded, and saved as a wav file rather than mp3.(don't ask me why, I don't know, my son told me to).