Why do we need to convert video files?

There are hundreds of video formats around the world, such as MP4, MPEG-4, H.264/MPEG-4 AVC, MOV, AVI, DivX, XviD, WMV, 3GP, MKV, FLV, VOB, and HD video etc. They came for different purposes, and different from each other, but not all of us know their differences. Most of us only care whether we are allowed to watch or not. Sometimes we need a special video format play on portable devices, but, if the resource videos are not the special format, we need a video converter. Suppose that we see some wonderful videos and the format of the videos is FLV, and we want to put them into our ipods. But the film is FLV while our ipods support MP4. This moment, we need a video converter to convert our FLV videos into MP4, and tnen we are able to put them into our ipods successfully and then enjoy them.

Sometimes when we convert our videos, we like to edit our video effct. If the original videos are too long to put into our ipods, we need to cut their length. When we have two seperate videos and we'd like to join them together, we need to use a video converter to achieve it. When we feel that the video scenes are so beautiful and we want to keep them as pictures, we need to find a video converter to help us.

I just have a good video converter named Aiseesoft Total Video Converter which my best friend recmmend to me recently. It is easy to use and helps me a lot because I have a lot videos and I need to convert their formats when I want to put them into my differert portable devices.

Aiseesoft Total Video Converter can convert any videos to all popular video formats such as MPEG-4, H.264/MPEG-4 AVC, MOV, AVI, DivX, XviD, WMV, 3GP, MKV, FLV, VOB, and HD video etc. It converts videos very fast. Last time ,I converted a one-hour MP4 film to WMV and it only took me ten minutes. It can also enable me to convert audio or extract audio from my videos to AAC, AC3, AIFF, AMR, AU, FLAC, MP3, M4V, MP2, OGG, WAV, WMA audio formats. It is also know as a ipad video converter.

I love it because it is a super video effect editor as well . I like all the beautiful things, so when I convert my videos, I prefer to edit their effcts to make them into perfect ones. Aiseesoft Total Video Converter comprising functions of trimming video, cropping video playing area, watermarking video, joining video clips.These functions enable me to enjoy my video happily.

With it ,we can also set the audio track, subtitle and the output as what I like, such as Video Encoder, Frame Rate, Video Bitrate, Resolution, and audio settings, including Audio Encoder, Sample Rate, Channels, Audio Bitrate. As for the Resolution, if we don’t find what we want, we are available to input our own resolution in Width(pixels) * Height(pixels). All the settings can be saved in the option list of “User-Defined”.

Aiseesoft Total Video Converter helps me do a lot of things and enables me to enjoy wonderful videos in different devices without any obstacles.You may love it toowhen you have used it.

How to use Techspansion's open source to build iSquint and VisualHub

Squint and VisualHub, the popular video converter on Mac OS X have now gone open source. They also have got new names, Film Redux (VisualHub) and PunyVid (iSquint). As you may or may not know, the developer, Techspanion has closed shop
and after an outcry from fans, it has released the source code.
You can get them here: SourceForge.net Repository - [transcoderredux] Index of /
This a tutorial on how to use Techspansion's open source to build iSquint and VisualHub.

Here are two parts:
Part 1, How to use open source to build VisualHub (Film Redux)?
Part 2, How to use open source to build iSquint (PunyVid).

What you need:
Mac OS X 10.5, Xcode 3.0 and Techspansion's open source

Part 1, How to use open source to build VisualHub (Film Redux)?
Step 1, Open the open source, you will see two folders: FilmRedux and PunyVid. Open FilmRedux and find the file "FilmRedux.xcodeproj".



Step 2, Double click "FilmRedux.xcodeproj" to open it with Xcode.



Step 3, Click the button "Build and Go" to build VisualHub (Film Redux). That's all.



Part 2, How to use open source to build iSquint( PunyVid)?
Step 1, Open the open source, you will see two folders: FilmRedux and PunyVid. Open PunyVid and find the file "PunyVid.xcodeproj".



Step 2, Double click "PunyVid.xcodeproj" to open it with Xcode.



Step 3, Click the button "Build and Go" to build iSquint (PunyVid). That's all.



The operation is simple, but the stability would be a great concern, it kept reporting error messages during my try which is really frustrated. Perhaps it's not wise enough to spend hours coping with those errors messages, as there must be some commercial programs that perform much more reliably, like the Video Converter for Mac.
If you want to convert videos to DVD, here is DVD Creator for Mac.

How to use Mac TS converter to convert TS to MP4, MOV, etc on Mac OS X

What is TS?
Transport stream(TS, TP, MPEG-TS, or M2T) is a communications protocol for audio, video, and data which is specified in MPEG-2 Part 1, Systems (ISO/IEC standard 13818-1). Its design goal is to allow multiplexing of digital video and audio and to synchronize the output. Transport stream offers features for error correction for transportation over unreliable media, and is used in broadcast applications such as DVB and ATSC. It is contrasted with program stream, designed for more reliable media such as DVDs.
TS format is a container format that encapsulates pocketsize elementary streams and other data.
Important elements of a transport stream: Packet, PID, Programs, Program Specific Information (PSI) , 1 PAT , PMT , PCR , Null packets

How to play TS files on Mac?
You need media player to play TS files on Mac OS X:
VLC media player is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg, ...) as well as DVDs, VCDs, and various streaming protocols. It can also be used as a server to stream in unicast or multicast in IPv4 or IPv6 on a high-bandwidth network. It supports Mac, linux, Windows.
How to convert TS to MP4, AVI,MOV, etc on Mac?
You need a video converter for Mac to convert TS to MP4, AVI, MOV, etc on Mac. Then you can put them on iPod, iPhone, PSP, Xbox 360, iMove, other potable players.
Step 1: Download TS Video Converter for Mac:
We recommend you Aiseesoft Video Converter for Mac which can convert TS to MP4, Convert TS to AVI perfectly. This Mac TS Video Converter also can extract audio from TS and Convert to MP3, M4A, etc. Compared with other video converters, this TS video converter for Mac provides you with better output quality, more advanced functions and higher conversion speed. You can download free trial Version here: for Mac intel users, for Mac PowerPC users. Then install and run this program. The trial version should be fully functional for what you want to do.
Step 2: Load the TS files you want to convert



Click the "Add File" button to browse your computer hard disc and add the .TS files you want to convert to the program.
Step 3: Output Settings
After you added TS files, you can select an output format for each video file and specify a directory on your computer to save the output files.
The TS Converter for Mac supports comprehensive video formats including AVI, MPEG, WMV, MP4, XviD, 3GP, FLV, etc.
If you don't know what formats your device supports, you can just select the format according to the device name. Of course, if you don't want to use the default video and audio encoding settings, just click the "Settings" button to customize these settings.



Step 4: Edit your TS files
This TS Video Converter for Mac set video brightness, contrast, saturation, crop video, trim video/audio and even merge multiple files into one file.

Step 5: Start the conversion
Click the Convert button to start conversion and then you can just go out for a walk or take a nap, and the conversion may have been finished when you come back: )

Modifications of transport stream specification for random-access media (M2TS)
Transport Stream was designed for tape and broadcast, but it required modifications for usage with random-access media devices like new generation of digital camcorders that record onto DVD disks, hard drives or solid-state memory cards.
Random-access based systems may save data packets into a temporary buffer if a storage device is not ready, for example on device startup. Packets are written out of order, and to keep track of them, a 4-byte timecode (TC) is added to standard 188-byte packets. The result is a 192-byte packet. This is what is informally called M2TS stream. Sony calls it "BDAV MPEG-2 transport stream". JVC calls it TOD (possibly an abbreviation for "Transport stream on media") when used in HDD-based camcorders like GZ-HD7.[9] M2TS transport stream is also used for AVCHD video files, which often have MTS extension.

How to Copy DVD, Rip DVD, Convert Video on Mac

Many friends want to share their home-make DVDs and their DVD movies with others and also they always feel difficult to do that. Today I will share you a really easy way to Copy DVD to another DVD disc, DVD image ISO, or a DVD folder. Also I will also introduce you how to rip DVD and convert videos on Mac.

Part 1: How to copy a DVD to another DVD disc/DVD image ISO/DVD folder on Mac
Step 1: DVD Copy for Mac.
To copy a DVD on Mac, you need a DVD Copy for Mac to help you. Aiseesoft DVD Copy for Mac is a good choice.

Step 2: Load Your Source
This excellent DVD copy for Mac allows you to load DVD folder and DVD image ISO.

Step 3: Choose Output Info
1. "Full Disc" or “Main Movie”
This DVD copy for Mac enables you to copy the full disc and also the main movie according to your need.

2. "Audio", "Subtitle" and "Volume" name
You can choose your output audio from the "Audio" drop-down list, such as "all audio"/ "None"/ or some audio the DVD provide.

Subtitle is always an important thing, you can choose your output subtitle in "Subtitle" drop-down list.

You can also name your output volume's name

Step 4: Choose Your Target
You can copy your DVD to another DVD disc, DVD folder or DVD image ISO.

Tips:
1. You can also choose to copy the menus or not.
2. All the info you choose will be displayed on the "Info Box".

Part 2: How to rip DVD to video formats on Mac

Step 1: Download Aiseesoft DVD Ripper for Mac.

Step 2. Load DVD
Insert DVD into your DVD-ROM, run DVD Ripper for Mac, click "Load DVD", find the DVD folder of the movie you want to add from your DVD-ROM, and Click "Open".

Step 3. Set output format.
This best DVD ripper for Mac provides you output formats as many as you want. Just choose one from the drop down list "profile" according to your portable player.

Step 4: Conversion
You can just Click "Start" to begin your conversion.

Part 3: How to Convert Video files on Mac

Step 1: Download Aiseesoft Video Converter for Mac

Step 2: Load video
Easily click "Add File" to load your video that you want to convert.

Step 3: Choose output profile and settings
At the bottom of the interface there are a drop-download list named "profile". You can choose your output format here.

Tips:
1. Trim
If you want to pick up a part of the video to convert, please click "Trim" button and drag the "Start trim slider" to set the start time and "End trim slider" to set the end time. (a) You can also do that by clicking the "Start trim button" and "End trim button" (b). The third way you do that is set the exact Start/End time at the right of the pop-up window and click "OK".(c)

2. Crop
If you want to remove the black edges or you want to convert a certain area of your video, please click the "Crop" button. You can do this either by drag the frame around the movie (a) or set the crop value: "Top, Left, Bottom, Right".(b). Another way to do that is choose models from "Crop Mode"(c).
Aiseesoft Video Converter for Mac also allows you to chose the output aspect ratio above the crop pane, "Keep Original, full screen, 16:9 and 4:3" are available.

3. Effect
If you want to adjust the effect of your movie, please click the "Effect" button and a pop-up effect window will appear. It allows you to edit your movie’s effect including "Brightness, Contrast, Hue, Saturation and Volume".

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