Cenix's VR-P90/P50/P20 and M180/M90/M50 digital voice recorders (DVR) produce recording files in proprietary .CVS (for SP mode) and .CVH (for HQ mode) formats. In order to facilitate sharing of the recordings, the bundled player can convert .CVS recordings into .EXE Windows executables (each containing a slimmed down player and the recording) and .CVH recordings into .WAV audio files respectively by using the email function.

As one may note, by just offering a conversion to .EXE files for .CVS recordings greatly limited their exchangeability. First, these files cannot be played back on non-Windows boxes easily. Second, they cannot be converted into other more popular and commonly used lossy audio encoding formats, such as .MP3, which can then be loaded onto portable players like the iPods.

As a side note, from the information available, the .CVS format seems to use G.729 encoding, and the .CVH format uses ADPCM encoding.

In order to enhance the exchangeability of .CVS recordings, one may use the extra utility provided by Cenix to convert .CVS recordings into .WAV audio files, the utility is available from the link above. Simply download and unzip it, then run the program "PVConverter".

After that, one can use a converter like dBpowerAMP Music Converter to convert the .WAV files into say, .MP3, .OGG, .WMA formats, and play them back using other audio players.

There are also some other DVR from Cenix and others that produce files in the above mentioned formats, including but not limited to Aiwa, Denpa and JNC.