How to edit blu ray film without encoding?

[gsingh13]

I have been searching on help sites and experimenting with lots of different software for a few days now and I still I haven't got anywhere so I've decided to ask for some help. Basically I have a blu ray film which, for various reasons, I want to edit. I don't want to do any fancy sfx on it, all I want to do is basic cut and paste thats all. Having said that this is proving to be an impossible task and I'm starting to think that the sotware/technology just hasn't developed yet but I'm hoping I'm wrong.
For my DVD editing I use videoredo and it works perfectly because it allows cutting and pasting while keeping all the audio tracks but most importantly it doesn't re-code anything. It allows simple cutting and pasting. But when it comes to blu ray it''s a completely different story. Not least format problems. I could be wrong but if we just take one hd format such as m2ts there seems to be several video and audio codecs that could be contained in the format. The blu ray film I'm using has a video codec of VC-1 and an audio codec of dts. All the 20 different, or thereabouts, software that I have used supports the m2ts format for editing but none of them support VC-1 which is really bizzare.
So my question is does anyone know of a software that will allow me to simply cut and paste blu ray films but without recoding and of course one that supports the VC-1 and dts codecs? Failing that does anyone know of a way to convert the video/audio without loss of quality? Surely in this digital age there must be a way to convert without reducing quality.
I can't understand why this is so difficult.
The BBC, for example, lost some of their programmes recorded in the 1960's. A private individual had recorded them on an old videotype machine. He gave these tapes to the BBC and they restored them and the quality was BETTER. So there must be a way to convert or edit without loss of quality wether you encode or not. I'm sure the BBC or any other organization would be able to rip aprt a blu ray film and put it back together without reducing quality loss so what type of software could they be using? Any help would be appreciated.

[Baldrick]

I haven't seen anything like that yet. Especially with VC1 and DTS support. Hopefully will videoredo or mpeg video wizard dvd make blu-ray editors in the future. But I guess they will be limited to h264 video...

[poisondeathray]

You can make cuts on a VC-1/DTS blu-ray with tsmuxer or tssniper (edit: not tssniper for VC-1), but the cuts won't be frame accurate (on I-frames). On a typical theatrical blu-ray , the actual cut could be within 24 frames (typical GOP length). Also, there is no video preview (cut by timecode)