thanks bro... my concern is on integrity/quality...
btw, there are lot of torrents there available for 1 title... how do you choose, the best torrent that have the best mkv in terms of quality (such as picture and sound)... is there a preferable source? i heard eureka is reliable source... any comment on this?
Actually EuReKa is not a source but one of Bit-HDTV's internal encoding group. You'll notice the encoding group tags at the end of every title (e.g. The.Dark.Knight.2008.1080p.BluRay.DTS.x264-ESiR.mkv ===> title.year.resolution.source.audio.codec-group.mkv). There are lots of encoding groups out there. The most popular are the scene groups (e.g. reveille, hv, septic, ctu, sinners, cinefile, etc). These are underground groups which specialize in releasing encodes even before the retail bluray discs go on sale. Wikipedia definition:
http://en.wikipedia.org/wiki/Warez_(scene) There is a competition among them on who releases first...so generally their encodes are not that good because they are often done in a hurry (e.g. improper aspect ratio, overcropping, loss of grain, etc.). Most of the time the internal groups offer better quality. ESiR, CtrlHD are hdbits internal. EuReKa is part of bit-hdtv. These three groups are in the top-tier in my opinion only.
Also, for best picture quality, try to avoid titles with HDTV (copied from tv broadcast), Bluray capture (back in the days when BD+ was not yet cracked, they copy from the source via hdmi capture before encoding) and DTheater (VHS copy that provide HD resolution. Link:
http://en.wikipedia.org/wiki/DTheater) tagged on their titles. For codec, x264 is good for the size, VC-1 encodes are huge in size. For audio, you may want to choose one with DTS which some argue to have better AQ than AC3/Dolby Digital. If the audio in Bluray is lossless (TrueHD, DTS-HD), the encoders would transcode the audio to DTS lossy format or just include the core DTS ripped from DTS-HD audio in the encode. Movies with FLAC audio would be better but you can't play them in NMT and most receivers can't decode them. For resolution (720p v. 1080p), it depends on your TV size, sitting distance and whether your eyes could see the difference.
At the end of the day, a reencode is still a reencode. Nothing beats the original in integrity, picture and sound quality.