26.08.2010 | 23:24
Hm, jedan pogled na HB manual and problem is solved.
Why not to use 100% quality?
100& applies no compression. It is lossless: it compresses the source without throwing away practically any detail.
So should you use 100% to perfectly preserve the source? Nope. Not at all. In fact, you'll end up with video that's way larger than the DVD, but doesn't look any better.
See, DVDs use lossy compression to squeeze down the raw video the studios use to make them -- sort of like a quality level of 80%. It throws away detail. When HandBrake uncompresses the video prior to conversion, the quality lost when the DVD was made is still gone. When you use 100% quality with x264, you're telling it to losslessly preserve the decoded, uncompressed video feed, not to losslessly preserve the DVD. Both have the same picture quality, but the uncompressed feed takes up a lot more space.
To sum up: when converting from a DVD source, there is no reason to go above 80% quality, which is roughly equivalent to how heavily the DVD is compressed. If you do go higher, your output will be larger than your input!