How to Convert DVDs to AVI Files Without Losing Quality
- 1). Download and install a conversion program (see Resources section). There are numerous free applications available. Look for an application that offers a vast array of customizability.
- 2). Don't limit the target file size. You will need a lot of space to maintain the original quality, up to 4 GB. Limiting the file size of a full-length movie to 700 MB is a sure way to degrade the movie in the process. You can limit the target file size within the application's main window underneath the header for "Output Settings" in most applications. This is typically designated with a text box, allowing you to enter the desired file size in megabytes. Leave the box blank and uncheck the associated check box.
- 3). Set the "Frames Per Second" or "Frame Rate" to match the source. A lower frame rate will result in lower-quality video. You do not want to go lower than 24 to 30 frames per second. Most movies (DVD and theater) run between 24 and 30 frames per second. Within the application's main window, under "Output Settings" > "Video," select "Same as Source" from the "Frame Rate" drop-down menu.
- 4). Convert using multi-pass encoding (2-pass or 3-pass). Multi-pass encoding allows the conversion program to analyze the video multiple times, creating a log used against the second or third pass to determine the best way to fit the resulting file within the AVI file requirements. It's a similar idea to using Photoshop to combine three separate pictures to create the best photograph. Under "Output Settings" > "Video," check the multi-pass box to enable multi-pass encoding.
- 5). Use a high bit-rate. A higher bit-rate means less compression. Less compression means a higher quality video with a larger file size. All these parameters work in tandem to create the best possible AVI. Enter the desired bit-rate under "Output Settings" > "Video." A text box will allow you to enter the bit-rate in kbps.
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