No it doesn't - it shows the partition structure. Which is what you asked for. Try this instead.
I don't have such a beast, but you are likely to run into similar issues to people trying to recover PVR disks. The manufactures may well use a known filesystem like ext3, but the data format is proprietary rather than inode based as expected. That means you (someone) have to read the data itself to try to discern where the data are, and how to find the indexing for it. It is usually obfuscated.
For security cameras, I'd expect a recovery industry (paid) already exists - but I haven't looked.
