I own the following HD-DVDs, which are currently listed as 'TITLE PENDING VALIDATION'.
I can confirm that these releases do exist and the data provided (so far) is correct.
Once these are validated I will submit cover scans and updates with further information. (There does not seem to be an 'Expert Insert' option for HD-DVDs.)

Kingdom, The [8253689]
Manchurian Candidate, The [HSP 1004]
Stardust [AUPHD3562]
Transformers [22025]
Neues vom Wixxer [88697 17726 9] (probably the same as this pending submission)
Raumschiff Enterprise (Season 1 - Disc 1) [113099] (probably the same as this pending submission)
Scooby-Doo [Z5 80966]
Verbotene Schlüssel, Der [825 389 5]
Fremde in dir, Die [Z5 Y21095]
Lucas der Ameisenschreck [Z5 81035]
Bugs! - Abenteuer Regenwald in 3D [5950007] (probably the same as this pending submission)

Here's a picture of the releases in question:


edit: one more
Rambo II - Der Auftrag [501667]
(can post a photo of this title, if required)