However, there is another important factor to consider here, and that's the format with which the songs are encoded.

然而，也有一个重要的考虑因素，就是歌曲文件被编码的格式了。

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Master-apprentice system is a key format of Chinese medicine education and an important factor in forming different medical schools.

中医师承是中医教育的重要形式；中医师承是形成医学流派的重要因素；

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Local versions of The X Factor are now produced in more than 41 territories and artists discovered by The X Factor format have sold more than 100 million records worldwide, including 110 No 1's, 270 Top 10 records, and 501 Top 50 releases.

ENGADGET: Sony and Simon Cowell intro X Factor-themed MDR-X10, celebrity headphones officially jump the shark for $300

Fuller sued Cowell for copyright infringement, over claims The X Factor copied the format of Fuller's show, Pop Idol - the original forerunner to American Idol - which was screened in the UK from 2001 to 2003.

BBC: Simon Fuller settles US X Factor case

Increasingly, it's beginning to look as though, after the initial attraction of high-definition's much sharper picture, interactivity is going to be the deciding factor that determines the outcome of the current format war.

ECONOMIST: Can Toshiba��s David topple Sony��s Goliath?