Research issues in multimedia storage servers
Banu Özden, Rajeev R. Rastogi, Avi Silberschatz · ACM Computing Surveys · 1995
Multimedia applications require support for the storage and retrieval of multimedia data, which typically consists of video, audio, text and images. This data can be categorized into continuous media (CM) data (e.g., video, audio) and non-continuous media data (e.g., text, images) CM data, in contrast to non-CM data, has certain timing characteristics associated with it. For example, video clips, which are typically stored in units of frames, must be delivered to viewers at a certain rate (which is typically 30 frames/sec). For video compressed using the MPEG-I standard, this translates to a data rate of approximately 1.5 Mbps. CM data is also voluminous. For example, a 100 minute video compressed using the MPEG-I compression algorithm requires about 1.25 GB of storage space.