HDDFs is a file system that shipped with some VCR receivers. There's no real documentation on how it operates which is why I created this little tool. It allows you to dump your VHS converted videos from the HDD.
First create an image from your HDD with a tool like dd.
Then extract your MPGs by running
java -jar hddfsdump.jar --input ./hddfs.bin --output ./mpg-out/
| Params | Default | Description | Environment Var |
|---|---|---|---|
| --input | Specifies the input file | HDDFS_DUMP_IN | |
| --output | Specifies the output directory for the final MPGs | HDDFS_DUMP_OUT | |
| --no-mpg-cleanup | false | Cleaning up MPGs means skipping non sequential blocks. Some VCRs simply override deleted MPGs with new ones, resulting in an overlap at the end of the mpg. If you encounter issues with the cleanup you can use this option to disable it. | HDDFS_DUMP_NO_CLEANUP |
| --recover | false | Dump even deleted data. You might want to use this in combination with --no-mpg-cleanup | HDDFS_DUMP_RECOVER |
| --debug | false | Dont write to disk, debug output on console | HDDFS_DUMP_DEBUG |
- Clikt Copyright 2018-2020 AJ Alt, Apache License Version 2.0
- Progressbar Copyright 2015-2020 Tongfei Chen, The MIT License
Thanks to the guys over at avsforum who dealt with the same issue around 10 years ago.
Especially to PeterTheGeek for documenting his findings on HDDFs
https://www.avsforum.com/forum/106-dvd-recorders-standard-def/1277209-hard-disk-file-system-investigation-magnavox-537-535-533-515-513-2160a-2160-2080-philips-3576-3575-a.html
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