4GB total per track? Trying to get an idea on max recording time with multitrack (18 tracks). By my mathemagician skills, I calculated 506.25 MB per hour, per track, so we’re in the neighbourhood of 8 hours if that limit is per track.
The maximum file size on FAT32 is 4 GB. Qu-Drive audio data rate per track is 8.24 MB / minute (144 KB / second). This would allow a maximum recording time of roughly 8 hours. For 18 tracks you would need 72 GB drive capacity for the maximum recording time.