How to compress videos to make videos smaller
There are always times when we want to compress videos to make videos smaller for our portable players like iPhone, iPod, PlayBook, iPad, mobile phones, etc. Without a suitable and useful tool, it would be a rather hard problem for us to fulfill our entertainment.
Leawo DVD Ripper is a suitable tool to rip DVD to video in all kinds of formats while it can help you adjust the videos size to your content, to compress videos to make videos smaller for playback on portable devices or for space saving. Although it involves the knowledge on codec settings that matter in the task, it is nevertheless easy to learn, by following a step by step guide below.
How to compress DVD videos to make videos smaller with Leawo DVD Ripper guide:
Step 1: load the DVD movie into Leawo DVD Ripper for processing. After import, you will see numbers of titles and chapters listed in order. Select all to get a full length output or otherwise partial output by your wish.
Step 2: select a profile for the DVD conversion output. More than 100 profiles, with reference to common video formats and particular terminal formats, are in distinct order. You may judge on the file extension and the description for one that matches your need.
Step 3: assuming you have assigned a XviD profile, then click "Settings" to open codec settings panel. There is a full list of codec settings, dividing into two parts, for you to make distinct differences.
Video Codec: it is to determine which arithmetic to use in encoding the video. If you have ever uploaded videos to YouTube, you should be acquainted with YouTube's recommendations on uploaded video format, which are H.264, MPEG-2 and MPEG-4. Leawo DVD Ripper has many codec plugins to cover most picky demands.
Quality: it specifies how much the video quality is to preserve after conversion. High quality usually brings good details on screen with the only holdback of large file size. It is recommended for video backup or broadcasting. When you want to view the video on small screen or memory-tight terminals, low quality is the best choice.
Bit Rate: it describes the bits per second in the video stream, reflects the video quality and video size in number form.
Video Size: namely the actual resolution of the video display in full size. Common DVD video size is 720*480, or 480p.
Frame Rate: it gives the idea of the frames per second in the video stream. A smooth video usually adapts a frame rate higher than 24. If the video contains mostly intense shots, a higher frame rate is required. Otherwise, you can lower the frame rate and reduce redundant frames in a slow motion video.
Aspect Ratio: it affects the display style on your player. 4:3 is preferred aspect ratio for TV or standard CRT screen, while 16:9 is often favored by wide screen LCD screen.
Audio Codec: same to video codec, except it is dedicated to audio. A moderate choice is MP3 for its widespread popularity around cyberspace. AAC features a better performance in a smaller file size, preferred on memory-tight cell phones or PMPs. AMR is the best choice for carrying voice because of its slim body, but not suitable for music enjoyment.
Quality: same as video.
Bit Rate: same as video. Usually a video file would contain both video stream and audio stream, so the total bit rate will be the sum of video bit rate and audio bit rate.
Sample Rate: a factor that determines the details of audio. It goes the same as Frame Rate.
Channels: an audio stream can be single channel (mono), double channels (stereo) or even 5.1 channels (surrounding). It can be easily determined by how many sub sound boxes you have in your audio system.
Important rules to reduce the size on output:
1. Use high compressing codec such as H.264 to convert your movie. The output file size is smaller while the quality is better.
2. Do not apply too high settings on bit rate and sample rate. It will increase the output file size and obviously not in the direction to reduce it. A modest advice is to use the default settings to reach the best balance between video quality and file size.
3. Do not use overwhelming frame rate. 24 fps can well support a smooth movie playback while more means waste of frames and space.
Now you should get a picture of how the codec settings work and are ready to start conversion. Leawo DVD Ripper provides comfortable experience during conversion, such as batch converting and after done actions, brings the task easier and faster to its goal.
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