AnalogWhole, an Alternative To FairUse4WM
Squidmarks writes, "AnalogWhole is a free application that allows any file that can be played in Windows Media Player to be transferred to iTunes as an MP3. It uses, you guessed it, the 'analog hole' to re-record any DRM'ed song as an MP3. Because the analog signal doesn't actually leave the computer, but is simply looped back in the sound card, sound quality of the re-recording is excellent. All meta data is transferred as well. The MP3 file is automagically added to iTunes. Just show it where you store your DRM music and walk away."
It is still looped through the sound card, so while quality may still be "excellent", there is still loss. I would rather use a program such as QTFairUse which doesn't lose any sound quality.
Very high. Windows Millennium Edition and Windows XP operating systems already support the Secure Audio Path, which places the (WHQL logo approved) decrypter, (WHQL logo approved) decoder, and (WHQL logo approved) audio output driver in kernel space. Part of the WHQL logo requirement is that no driver may mix Secure Audio Path audio into any cleartext digital output, and no driver without a logo is a valid Secure Audio Path playback device. However, few if any WMA files that require the Secure Audio Path are in the wild yet. However, record labels will begin to change their requirements as WMA stores' customers replace their computers that came with Windows 98 or Windows 2000 with newer computers that come with Windows Vista.
For WMA files that use Secure Audio Path, you'll need a $5 audio cable and Audacity.
...build your own USB "converter". Companies like Texas Instruments have lots of devices like PCM2704, that allow access to an unprotected sound bitstream. It's pretty simple to build a fake digital speaker that just redirects the data to a fake digital line in. Some microcontrolled usb sound devices contain both input and output devices on the same IC, so you can software redirect the output (coming from the computer) to the input (going back to it).
So you don't even need an "Analog hole". You can use a digital hole and don't lose any quality at all. And this kind of device is perfectly accepted by any "content protection" driver schemes.
It's impossible to protect sound files.