LOL, I know. But several of the HD DVDs I had before I passed them all on were starting to go weird under the transparent surface.
It could be how they are stored or something.
There was a period in optical media history, where the "bubbles/dimples" created by the mastering process and laser encoding, could very easily degrade to the point of the reader's laser failing to properly read the media. Burner media for use in our optical media writers was impacted to a greater degree, and if you recall, we used to choose various brands of media manufacture in an effort to get the most stable and consistent performance from optical media. Personally, I never had any optical media degrade, from the very first CD media, thru to the BD-RW we used to use for content mastering.
This conversation, just got me thinking of how we first mastered digital audio to 3/4" video tape using something like the Sony 601 PCM processor, which converted the stereo analog audio signal to 44.1 PCM and stored the digital data as a video signal.

I still have 3/4" video tape PCM masters, but the hardware is long gone. My kids look at me talking about this tech, they way they do when they see an AT&T Princess rotary dial phone.
