Foobar2000 is an advanced audio player for the Windows platform. Some of the basic features include ReplayGain support, low memory footprint and native support for several popular audio formats.

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Source : foobar2000 homepage
Read More for changelog... fb2k v0.7.5 changelog :

- changes in dithering, removed random noise tables to prevent repeating noise artifact (thanks to KikeG for reporting), dithering slightly slower now
- new default playlist formatting, based on Case's strings
- reworked foo_ui_std seekbar code
- SDK: easier control over playback_flow_control settings, components can now access diskwriter settings
- SDK: string_list_nulldelimited class, strongly recommended if you use extra_items for titleformatting anywhere (someones component passes them with wrong terminator according to crash logs i read)
- minor tweak in CDDA input, now creates separate "Audio CD" playlist
- improved CD burning component