What is Dvf
Dvf extension stands for Sony Digital Voice File. You can open dvf files with Sony Digital Voice Editor software.
These are the files which produced by Sony digital audio recording device. These devices may be ICD-BP100 and ICD-BP150. These file types can only opened by softwares which developed by Sony firm. Besides, you have chance to convert dvf files to wav extension files. In this case you may use Sony Digital Voice Editor.
You can download it free from different web pages.
Viewer or Converter for Dvf
Sony Digital Voice Editor
Which pages about Dvf