What's IFO?

IFO is a DVD InFOrmation file that stores information about Chapters, Subtitles and Audio Tracks.

IFO information is a Video Title Set (VTS).

An IFO file is one of three types of files that are used on DVDs. It contains important navigational information, such as where a video chapter begins, and where audio and subtitle streams exist within the movie (VOB) file. IFO files are not encrypted.

IFO Files give the player important navigational information, like where a chapter starts, where a certain audio or subtitle stream is located, etc. This is the reason why it's only possible to rip certain parts of a movie (like a chapter) with a ripper which can read this files.

Related Articles:
What's DVD?
How to rip/convert dvd .IFO on mac!

New handbrake 0.9.3 version is no longer limited to DVDs and which video format handbrake supports?!

As we know, the biggest breakthrough for new Handbrake is that it is no longer limited to DVDs. It's mean that Hankbrake will break into the video converter market. Wish good luck!

Handbrake 0.9.3 new features!

As a new baby, it is a long way to be a able man. But until now, handbrake supports lots of import video formats such as .asf .avi .flv .mp4 .dat .m2ts .m4v .ts .tp .mkv .mov(include HD mov) .mod .wmv(except HD wmv) . Hopefully it can support .rm and .rmvb videos.

How to rip dvd on mac using free mac dvd ripper handbrake 0.9.3!

Handbrake is the best mac dvd ripper among free dvd ripper for mac tools.
Now, the new version 0.9.3 was released! With out question, the quality is a great progressional and no longer limited to DVD.
As the main function is ripping dvd, here is mainly talking about how to rip dvd on mac!

Download Handbrake and install!

Below is the main pan screenshot!














Click to Enlarge


Step 1: Add dvd source.

Click 'Source' at the left up corner to import dvd info.

Step 2: Choose a output format by selecting from the list box 'Format' or choose from the right pan and the parameters will automatically load to the main pan box. There are four formats for choosing:MP4 MKV AVI OGM. More info about how to change default settings!








Step 3: Click 'Add to Queue'. If you foget to click this button, the task will be missed.

Step 4: Click 'Start' to rip the source you added.

Below is the right pan part screenshot.
For these options, some can be readed by the words like ipod which is choosed for the ipod video
parameters. If you want to rip a video to computer, Classic and Deux Six Quatre are better than Bedlam\ Blind\Broke and Constant Quality Rate at the balance among quality and convertion speed and output file size.

If you want an easy control and more professional shareware, refer to:
how to rip dvd ts on mac!

HandBrake 0.9.3 Released!

Download






New Features:

Universal input

HandBrake is no longer limited to DVDs: it will now accept practically any type of video as a source. This massive enhancement was achieved by tapping into the power of libavcodec and libavformat from the FFmpeg project.

Linux GUI

There is now an official GTK graphical interface for Linux, available as a binary for Ubuntu. This is the real deal, interacting directly with HandBrake's core library instead of just putting a pretty face on a command line interface. It has full feature parity with the Mac interface.

Video quality

The x264 project has really come into its own this year, and HandBrake 0.9.3 integrates the latest improvements to the H.264 encoding library. Picture quality has enhanced dramatically through the use of psychovisual rate distortion and adaptive quantization, and there have been significant speed optimizations.

Audio flexibility

HandBrake now offers total control over multiple audio tracks.

No more internal DVD decryption

Yeah, we know, no one reading this is going "Oh wow, no more DVD decryption--what a great new feature!" but...deal.

HandBrake will dynamically load VLC's copy of libdvdcss if you have it in your Applications folder in Mac OS X, and if you're on Linux, and you want to live on the wild side, you can install libdvdcss on your system and get the same effect.

Translation of the last paragraph from nerdese:

We're not about to stop you from choosing to decrypt DVDs. If you're on a Mac, and you have VLC 0.9.x installed, you won't even notice the internal capability's gone. If you're on Linux, all you have to do is install a library.

Persistent queues

When queueing up a bunch of videos to encode, you need no longer fear a crash in HandBrake's graphical interfaces. Queued jobs are cached to disk for safekeeping between sessions.

New, better organized presets (Be sure to run "Update Built-In Presets" from the Presets menu!)

The presets are now "nested" in folders and have evolved. Notably, there is a new Apple "Universal" preset, designed to play and look good doing so on anything from an iPod Nano to an AppleTV.

There have been many changes to most of them. Please be aware that most presets now use different settings. This means most of them are not suited for benchmarking 0.9.3 against 0.9.2. For example, the AppleTV preset is slower because it is now quality based, and produces much more efficient output. The Normal preset uses psychovisual rate distortion. The High Profile presets use psychovisual trellising. All of these setting changes can influence encoding time and output file size.

For comparison purposes, there are several presets in the Apple->Legacy folder (the old iPod High-Rez, the old AppleTV, and the old iPhone presets) which remain unchanged since 0.9.2.

Audio-video synchronization

HandBrake should now keep lip-synch as well as a DVD player can.

Decomb filter

HandBrake now offers a decomb filter, in the style of AviSynth's. It is a deinterlacer that can be left on all the time without degrading picture quality, because it only deinterlaces video when it visibly needs to be.

Multi-threaded deinterlacing

The "Slow" and "Slower" filters, as well as the new decomb filter, will now take advantage of as many processors as you can throw at them.

"Same as source framerate" really is the same as the source framerate

HandBrake now, by default, passes through the exact video framerate of the source instead of smoothing to a constant rate, which could lead to frames being duplicated or dropped.

Theora video encoding

HandBrake now can encode video using the Theora codec.

Updated libraries

Besides x264, updated libraries include libsamplerate, libogg, xvidcore, libmpeg2, lame, faac, and ffmpeg's libavcodec, libavformat, and libswscale.

Massive improvements to all interfaces

As hard as it might be to believe, the changes listed above are only the tip of the iceberg. A much longer list is available, but even that is only a brief summary. There have been well over 600 changes to HandBrake's code base since 0.9.2, including hundreds of bug fixes, and a thorough log can be found on the Trac.

From Handbrake.fr

Related Articles: How to rip dvd on mac using free mac dvd ripper handbrake 0.9.3!