- Amazon's error is completely useless. It makes you think that you have the wrong version of flash.
- If you haven't already, you need to install hal and libhal1 "sudo apt-get install hal libhal1"
- Adobe has a guide for sorting out these problems once you figure out it's DRM related. Here the test page was the most helpful.
- The test page gave me the cryptic error 3322 - device binding failed.
- I tried the solution found here, "rm -r ~.adobe/Flash_Player" it didn't work, but was needed later, after I actually fixed the problem
- It turns out HAL wasn't starting, I ran "sudo hald --daemon=no --verbose=yes" it spat out a bunch of errors and died. I found the solution here, I'm not sure it's a perfect solution, but I ran "sudo rm -r /etc/hal" then "sudo ln -sn /usr/share/hal /etc/hal" and HAL runs! I think I will copy rather than link it at some point, but that's what I did.
- I rebooted and the test page still doesn't work, I had to do step 5 again, now it works.
I tried this on Linux Mint 14.1 and just installing HAL worked, I couldn't reproduce the problem on 15 by removing the /etc/hal directory. It's possible I corrupted something at some point, I'll try on a clean Mint 15 install sometime and report back.
I also got a 3323 error while HAL was broke, also fixed with #5.
Update: Only steps 2, 5, and 6 are necessary to solve the problem, the others are either diagnostics or irrelevant. (Thanks Douglas Roberts!)
Update 2: This affects other sites (Thanks NikAmi!), I don't really have the time to determine which ones myself, so I'll do a list and update it if anyone finds one that needs it (Post it in the comments). It may help someone else.
Known Sites Also Affected:
Update 3: There is a package available (at least in Arch Linux's AUR) called HAL-Flash that lets you play DRM Flash content without needing the HAL package / daemon. I'm using it on both my laptop and HTPC and it seems to work fine.
Update 4: Chromium no longer supports NPAPI (netscape plugin API), pepper-flash doesn't work with protected files. Firefox still uses NPAPI and works with Amazon Prime Video. HD doesn't seem to work for me, but SD works fine. I'm not sure why.