They are there! Along with a CHACE digital surround and DataSat trailer...
UPDATE: during my continuing research of trailers, I also download A LOT of duplicated titles, just in the hope of finding a better version (audio and/or video, or different video standard as most of them are only PAL or NTSC)...
I found a bunch of trailers with the same titles, but different size... "well, maybe the video quality is better" - I thought at the beginning, then I begun to download them... after many hours, my brain awake and told me: "stupid! these are VOB files from DVDs, and the size SHOULD be always the same... because the DD/DTS/THX trailer size are fixed..."
Me: "OK, brain, you should be allright, but now I finished to download them... let's give them a try before delete them, what do you think?"
Brain: "I concede you the honor to do it, but you know that, if the size is higher, and the video standard is the same, something is going wrong... maybe the one who has posted them has tried to 'fix' them as you do with your stupid laserdiscs... OK, waste your time, as usual, I'm going to sleep!"
So, I played one trailer, and the time is the same, the format is the same, the audio is the same... and the quality *seems* the same...
Me: "OK, let's try another one... it's the same..." and again, and again...
Brain: "Finished wasting your time? OK, now can you please check the files video and audio specs with Mediainfo?!?"
I followed brain's directions (as usual) and I discovered that the video bitrate/size/format etc. are the same, as the audio... "but, wait... all of them have also another soundtrack... what?!?... DTS!!!"
So, now I have to re-edit the first post with more than FORTY trailers that have both AC3 and DTS soundtracks!!!
Are you (forum users) happy as I am now!?! (^^,)