What is RAM file?

The Ram file is the basic means for launching a clip or a simple sequence of clips that plays in RealOne Player. You can also use the Ram file to open an HTML page in the media browser or related info pane.

RealMedia Metadata
File extension: .ram
MIME type: audio/x-pn-realaudio, audio/vnd.rn-realaudio, audio/x-pm-realaudio-plugin, audio/x-pn-realvideo, audio/x-realaudio, video/x-pn-realvideo, text/plain
Developed by: RealNetworks
Type of format: ramfile, RealMedia File, RealPlayer.RAM.6, UltraPlayer.AudioFile, Winamp.File

Reference one or more remote RealAudio or RealMedia streams. Use this file type for RM Media redirection. Use a text editor to create a .RAM file that contains a single line: the full URL to the .RM file. Use ASCII mode to upload the .RAM file and binary mode to upload the .RM file. Be certain the server has audio/x-realaudio as the MIME type for the .RM file extension and audio/x-pn-realaudio for the .RAM file extension. 

What is WAV File?

Waveform
File extension: .wav
MIME type: audio/wav
audio/wave
audio/x-wav
Type code: WAVE
Uniform Type Identifier: com.microsoft.waveform-​audio
Developed by: Microsoft & IBM
Type of format: audio file
Extended from: RIFF

Convert RAM to WAV with Mini-stream Ripper