RealPlayer has a wide variety of plug-ins. Some of the plug-ins are listed at the RealPlayer accessories page, but not all.
Audio Enhancement
There are four audio "enhancers" available for the latest version of RealPlayer. DFX, iQfx, Volume Logic, and Sanyo 3D Surround. Lake PLS, created by Lake Technologies, works only with RealJukebox, and has limited use. There are some registry tweaks which allow Lake PLS to work with RealPlayer 10. Lake PLS is still available on the RealPlayer website.
RealPlayer Skin Creators
RealPlayer has had two skin creator plug-ins: SkinsEditor for RealJukebox -- an easy to use skins creator made by DeYoung software. The second application, RealJukebox Skins Converter, converts Winamp skins into RealPlayer skins.
Playback Plug-Ins
Please see section File formats supported by a plug-in.
Radio Tuners
vTuner Plus and HMRadio are radio tuners specially created for RealPlayer.
Visualizations
The available visualizations from the RealNetworks site are: FrequencywurX, FyrewurX, FlamewurX, XFactor, Spectrl View, FluxWave, Puddle, Paint Drops, Polka dots, StickSterZ 1.0, Circle, On the road, Real Logo, Hubble Bubble. There are some more visualization plug-ins like Surreal.FX by RealNetworks, G-Force and WhiteCap by SoundSpectrum and SticksterZ 1.1 by Eric Metois.
Firefox Browser Download (Firefox Add-in)
Real Player has a browser download add-in for Firefox (currently v1.0) which allows users to download video from a video player window (pop-up menu above top-right side of video player).
ScrobrealPlayer
an audioscrobbler plugin that connects RealPlayer with the Last.FM social music network.
Supported media formats
RealMedia formats: RealAudio (*.ra, *.rm), RealVideo (*.rv, *.rm, *.rmvb), RealPix (*.rp), RealText (*.rt), RealMedia Shortcut (*.ram, *.rmm)
Streaming: RealTime Streaming Protocol (rtsp://), Progressive Networks Streaming Protocols (pna://, pnm://), Microsoft Windows Media Streaming Protocol (mms://), Real Scalable Multicast (*.sdp), Synchronized Multimedia Integration Language (*.smil, *.smi)
Audio: MP3 (*.mp3, *.mp2, *.mp2, *.m3u), CD Audio (*.cda), WAV (*.wav), AAC/aacPlus v1 (*.aac, *.m4a, *.m4b, *.mp4, *.acp, *.m4p), Apple Lossless, AIFF (*.aif, *.aiff), AU Audio Files (*.au), Panasonic AAC (*.acp)
Video: DVD (*.vob), Video CD (*.dat), MPEG Video (*.mpg, *.mpeg, *.m2v, *.mpe etc), AVI (*.avi, *.divx), MJPEG video playback from .avi files,Windows Media (*.wma, *.wmv and etc) (requires Windows Media Player 9/10), QuickTime (*.mov, *.qt) (Quick Time Player must be installed), Adobe Systems Flash (*.swf) (Flash or Shockwave Player must be installed), Flash Video (*.flv).
Download RealPlayer 11.0.0.559 RealNetworks Inc - 12.72MB (Freeware)