Question: How to prevent file overwrite when stream is resumed?

[Mr-Jake]

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I use youtube-dl to record live radio streams from the site TuneIn.com.

Sometimes there is a stream interruption and youtube-dl resumes recording the stream. However, when youtube-dl resumes the stream the file is overwritten and all the hours of content previously recorded is lost.

How can I stop youtube-dl from overwriting the file when it resumes? I looked at the -w parameter, but how do I get youtube-dl to start a new file when it resumes, for example "file(1).mp3", "file(2).mp3", "file(3).mp3

This is the batch file I currently use:

D:\youtube-dl.exe "http://tunein.com/embed/player/s28671/" -o "D:\Radio\file.mp3" 

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