Sound and Video
- Sound
- AU (.au) is the standard UNIX sound format. 50000 bytes/1
minute. Low compression rate. Requires Netscape 2.0.
- Wave (.wav) is Microsoft's sound file format. Examples: tada.wav
(27516 bytes/5 seconds)| microsof.wav
(135876 bytes/6 seconds)
WavCentral
- Midi, Musical Instrument Digital Interface (.mid) is an
internationally recognized standard. Requires Netscape 3.0. Examples:
whiter.mid (40733 bytes/5 minutes) |
forrest.mid (4485 bytes)
Embedded midi
Midi Farm is
a huge collection
of midi sound files. For more information check out Midi
from Yahoo
- (.ram) Audio files may also be streaming audio, which
is played as it is
coming
down. Requires an external player: RealPlayer. Listen to live radio from AudioNet. Here is a sound file I
created as a wav file and then converted to a realplayer file test.ra.
- Video
- MPEG, Moving Pictures Expert Group, (.mpg) has a
possible compression
ratio of 200:1. 2.8 megabytes/1 minute of video. Requires Netscape 3.0.
- Quicktime (.mov) has a possible compression ratio of 50:1. 4
megabytes/1 minute of video. Hollywood
Multimedia Online
- AVI, Audio Video Interleave, (.avi) was designed to work with
Microsoft's Media Player application like WAV.
Average file size falls somewhere between those of Quicktime and MPEG. aladdin.avi [1.4MB]
Embedded aladdin.avi
- RealPlayer is streaming video, which is faster video. It is viewed
as it is coming down and requires an external player.
- VDO is another streaming video technology, which requires an
external player (plug-in).
- Use Lycos
media search engine for more multimedia files
MIME Types
MIME (Multipurpose Internet Mail Extensions) is a Web standard for transmitting multimedia data. You can find the MIME types list in Netscape Navigator 4.0 by clicking Edit/Preferences, then Navigator/Applications
Selected list of MIME Types
| Description | MIME type/subtype | File extensions |
| Hypertext markup language | text/html | htm html |
| Plain text | text/plain | txt |
| GIF image | image/gif | gif |
| JPEG image | image/jpeg | jpeg jpg |
| Portable document format | application/pdf | pdf |
| Powerpoint file | application/ppt | ppt |
| MIDI sound file | audio/x-midi | mid midi |
| Quicktime video | video/quicktime | mov |
| MPEG video | video/mpeg | mpeg mpg |
The complete listing of registered MIME types
Birte Nebeker
bnebeker@raritanval.edu
