cache file too large

Hello:
my app cache the music file , but the .download cache file larger than the source file ;
how to do ? please thank you!

The report names no source file, test, or reproducible example; it only says a cached music file produces a .download file larger than the source. First obtain the file, player, cache configuration, and expected behavior, then locate the cache-writing entry point and add a regression test once the cause and definition of done are clear.

Written by the indexing model from the issue text.