Thanks.
Actually I finally found a solution after searching through countless forums on the web. I'm going to paste what the other person posted way back in 2004. It references a different video camera than I use, but the concept is the same. Perhaps this can be of help to others who run into the same problem:
As all the camcorders having a HHD formatted in FAT, the size of a data file is limited to 4GB.
During a continious recording, the GZ-HD7 closes the current file when this limit is reached and open a new file. This 'cut' point is not well undestood by the NLE softwares when the 2 files are imported on the time-line.
In fact, at a binary level, both files contain the correct data of the recorded flow: they are really like 1 file cut in 2 --or more-- separated other files.
So, you need to merge them back into 1 file to retrieve a normal file. If you have no specialized Tool to manipulate files (having in general a merging function somewhere), you can do as in the 'old-time' a DOS merge:
- under Windows, open the 'Run' window, and type into it the program name: Command
- you are now into a new window, in text mode, running a DOS environment,
- you need to know the path where are located your files; assuming that they are into the Directory 'C:\VIDEO', you need to change your current Directory by typing: CD C:\VIDEO
- now, you need to do a binary merge by typing: COPY /B FILE1.TOD + FILE2.TOD MERGED.TOD
Note: replace FILE1.TOD and FILE2.TOD by the real names of your files, and replace MERGED.TOD with the target name of file you want. If you type the same COPY command without specifying any target name, the 2 files will be merge into the first file. The same command can be done with more files than 2: you only need to add a + FILE.TOD for each additional file you want to merge.