maximumcompression.com deals with the various compression technologies available today on different types such as image files, text files, and bulky video files … all in a very impressive tabulation of their tests. This kind of tests are very useful when we have to choose among a lot of compressors.
Later.
RMVB is one container format you never want to show your back.Infact if you do that you will be missing a lot of good things.Come on…I am not kidding.Well..I do not blame you guys for i too hated files with an .rm extension.But recently RealMedia has developed a spectacular format for variable bitrate streams..’Real Media Variable Bitrate’ or simply rmvb.Files in AVI format,(especially the ones encoded with DivX or XVid) were widely popular in 2001(still pretty famous..).I came across these RealMedia formats due to anime download sites.Actually it was Inuyasha(Ep. 11) that i downloaded first.The size of an 27 minute episode was 33 MB and the quality was decent.Back then there were times when i even felt that i was the only one using .rm files
Well what is really the fuss about rmvb format?.Nothing much..It is smaller in size compared to .mpg and .avi and can be used for storing media files.RMVB is a contrary to other formats(even .rm) because of its Bitrate settings.Variable bitrate varies output data per time segment.Unlike CBR(Constant Bitrate),VBR gives higher bitrate for complex sections in a media file and segments of less complex nature are given reduced bitrate.So the net result being,the file’s size reduced dramatically.
Size?..A 24 min ‘LOST’ episode in rmvb can have a size of 85 MB whereas an AVI version can have anything from 125-200 MB.(Above that it must have an uncompressed avi..you are nuts!)That’s definitely an advantage with rmvb right?.
The next Factor,
Quality..hmm..I have eyes and they tell me the quality is almost same to an .avi equivalent.Don’t believe me?.Screenshots please!!.Hey Mr.Forse has some for us.
Support for advanced content, such as chapters, subtitles, meta-tags, user-data,streaming media?.
A plain but sure yes.
Moving on..
Portability.Uh Oh..It seems like we have reached problems at last.If you have a computer system and a real player..Fine!.I once said about ‘rmvb’ to a friend.After a strong debate, he remarked.
But i am sure that my DVD player supports only DivX and not RealMedia..
True,RealMedia is not supported by players available now but this may soon be done.(I hope so.)Mp3 files too have such a problem.Some such files are now being encoded using VBR and these files are not found to compatible with other players.So listening to your car stereo,remember..it is ‘CBR encoded mp3′ (or even Average Bitrate).The encoders and the decoders have to be a little more complex if we have to hear VBR files.But sure technology is changing.We can emphatically hope for more advanced gadgets.
Now that i have blogged a lot i feel like downloading a movie.Let me search..hmm..Pirates of carribean:Dead Man’s Chest.Got it! 635 MB(DVD Rip.DivX).Woah!!That’s simpy too much…I got to add a nice extension to my search..hmm..Voila.374 MB!.Ya Guys it is none other that ‘.rmvb’