You should try to import the complete directory and subdirectories, not the individual files. In EX terms the complete BPAV directory.
I tried your suggestion but got a dialog box saying "File format not supported" for all the IDX files. Audio still drops out.
There seems to be about 5 frames of audio silence (zero waveform) at the end of each clip. Why is this? How can I recover that audio?
Again in EX terms, when you import the complete BPAV directory, you also get errors but just disregard/skip them and you are ready to go. At least that is what works for EX material. I assume that Z5 material works similar.
Problem solved! I found a topic on another forum which, although using different software and hardware to mine, worked perfectly.
For anybody else who has this issue ...
The problem arises because Compact Flash (CF) cards are formatted with FAT32 which has a maximum file size of 4GB. Any piece of HD footage longer than 21 mins will exceed this limitation and cause the file to be split into 4GB chunks. If you capture directly from the camera it'll work fine but if you have video files copied from the CF card to a hard drive you're going to need the workaround to avoid glitches.
The solution is to manually concatenate (stitch together) the files using the dos COPY command as follows:
copy /b file1.m2t+file2.m2t+file3.m2t x:\bigfile.m2t
The file list can be as long as you like but must be in the correct order. Use a plus symbol (+) between file names.
The "x:\bigfile.m2t" is your destination file and location (drive x in this case). This file will have no dropouts at the seams. :-)
The /b parameter is to ensure binary concatenation (won't work without it).
For more information see this post ....
Great news, and thanks for posting the detailed workflow, plus link.