unmarked HDCD's

I have been digging through some cd's lately and have found a few that are NOT marked as HDCD encoded, but when I play them the HDCD indicator on my Toshiba SD-3109 dvd lights up. I thought liscensing required all HDCD discs to be marked. For example, 4 discs that I have found: Faith No More- Who Cares A Lot(the greatest hits}, God Lives Underwater- Life In The So Called Space Age, Live- Secret Samahdi, and Danzig- 6:66 Satan's Child. None of these cd's say anything about being HDCD on the jewel case or in the booklet. The Danzig cd is the one that really surprised the hell out of me. He's not known for auidiophile quality heavy metal by any stretch of the imagination. Has anyone else found some cd's that are not marked?
Yes. I have several HDCD CD's that are unmarked, but what you really want to do is check out www.hdcd.com. They list all of the CD's available in HDCD encoding. Good luck.
Yes. I've also had a recent experience where some individual tracks were HDCD and others on the same CD were not.
I have Dave Brubeck's "Take Five" on CD. It runs in HDCD and sounds like it for a 1959 recording. A friend has his "Greatest Hits" CD and the selections from Take Five also run in HDCD, so it must be correct.
I'm glad that I'm not the only one to notice this. Thanks for replying to my question. The cd's I listed above were checked on the HDCD web-site and I think the only one that was listed was the Faith No More disc. The others were not. If anyone else has found discs that are encoded but not marked please post them so I can maybe check into buying them. Thanks