Herewith some corrections and additions to the above. Note that K=1024 not 1000, M=1048576 not 1000000; B=bytes, b=bits.
The 480x480 resolution stated above is for NTSC SVCDs only. PAL SVCDs use 480x576, at 25Hz instead of 29.97Hz.
The bitrate is dependent on the sector rate (CD spin speed), which is variable up to 150Hz (2x standard speed). Each sector of MPEG2 data has 2324 bytes of user data, giving 348600Bps peak data rate, equivalent to approximately 2.6Mbps or 2723Kbps (both rounded down for safety).
The MPEG data stream may contain from zero to 4 mono or 2 stereo MPEG-1 layer 2 audio tracks from 32Kbps to 384Kbps. Alternatively, the 5.1 MPEG-2 extension format may be used.
Both video and audio streams may be CBR (constant bit rate) or VBR (variable bit rate).
Still images (in MPEG format) may also be stored on the disc, with a resolution of 704x480 (NTSC) or 704x576 (PAL). Both of these resolutions will be resized to 4:3 aspect.