Okay, firstly lets clear up a few things here.
DVD-Audio is not the same as
DTS. DTS Entertainments did release some DVD-A titles, and some DTS-CD titles. DVD-A is lossless, DTS is not.
DSOTM DVD-A - when you bought this you got ripped off. This was created by fans - for fans - for free.
You can download it if you look in the right places. If someone sold it to you then they are cheap scumbags.
You cannot make High Definition DVD-A from a CD. Even if you upsamle from 44.1 to 96, and widen the bit depth from 16 to 24, all you have done is padded the original file with a load of zeroes, and you gain nothing at all in terms of quality. It's a myth.
(And "High Definition" actually refers to Video, not Audio. With Audio the correct phrase is "High Resolution". Sorry abou8t the nit-picking, but it is actually all quite important as the confusion has allowed the labels to almost kill off true High Rez Audio)
Buying DVD-A is not easy these days.
www.amazon.co.uk has a lot still available (Music/DVD-Audio)
DTS Online also have a lot for sale.
See
http://www.dtsonline.com/shopping/catalogue/music.php and the Queen title will be in there as it was a DTS Ents release.
DTS-CD downloads are again not WAV files, or DVD-Audio.
They are DTS multiplexes with a 16/44.1 WAV header designed to allow you to burn the file straight to a CD. Use Audio CD, use the WAV file, and play back through a DTS decoder and it will be there - the noise you are hearing is what a DTS encoded file sounds like when played through non DTS decoders.
Audio DVD Creator is not DVD-Audio, it is DVD-Video.
DVD Audio Ripper is also nothing to do with DVD-Audio either, again it is DVD-Video.
For true, cheap DVD-A use Cirlinca's DVD-Audio
Solo.
www.cirlinca.com
It's $35 or so, and is true High Resolution DVD-A capable.
Creating 5.1 from stereo is a whole new minefield.