Hi, complete novice here and having the same issue with invalid project. Can I clarify what is meant by “same length” I see it referred to as “same size” too. I get same length but not same size. I converted the Cambridge Music Tech tracks to 24bit 48kHz and renamed as per convention, the folder is recognised but tracks won’t play. I used Soundforge Pro to convert using the “Save as” Audio: 48,000 Hz, 24 Bit, Stereo, not sure where to go next, any help gratefully received 🙂