如果您有一个扩展类型未知的媒体文件，那么让它在您最喜欢的媒体播放器中轻松播放可能是一种令人沮丧的体验。您应该转换文件还是有更好的解决方案？今天的超级用户问答文章帮助读者处理有问题的媒体文件。

今天的问答环节是由SuperUser提供的，SuperUser是Stack Exchange的一个分支，是一个由社区驱动的问答网站分组。

问题

超级用户读者Henry想知道如何将未知的媒体文件类型转换为mp3：

I am having trouble converting an unknown media file type to mp3 so that I can easily play it in VLC Media Player on my Windows 7 system. If I drag and drop the file into VLC Media Player, it plays fine.

When I open it and attempt to choose VLC Media Player as the default program, the “Always choose this program to open this kind of file” check box is grayed out and I am unable to select it. I want to be able to set VLC Media Player as the default program for all the music files I have that are like this.

如何将未知的媒体文件类型转换为mp3？

答案

超级用户贡献者AFH和Kamil Maciorowski为我们提供了答案。首先，AFH：

If you play the file via drag and drop, pause or stop it, then:

• Go to Play-list
• Right-click on the problem file
• Click Information

The Codec Tab will tell you what type of media file it is, so you can close the program and add the appropriate extension to the file.

Do not convert the file! This will take time and degrade the quality. If you do not know what the appropriate extension should be, rename the file as FileName.vlc and associate the extension with VLC Media Player (any unused extension could be used, but this one is unlikely to be used by anything else on your system).

接着是Kamil Maciorowski的回答：

To anyone who has the same exact problem, do not let my answer misguide you. AFH’s answer is right, it is better to avoid converting the file altogether. Still, Henry asked for it, so Henry gets it.

If VLC Media Player can play this file, then it can likely convert it. There is Convert/Save entry in the File Menu (the actual entry may vary slightly depending on the UI language settings on your system). Add your file with the Add Button, then choose Convert from the drop down menu at the bottom. My installation of VLC Media Player has the mp3 profile right out of the box.

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