A new high-resolution 24bit/192kHz audio format that’s based on the existing video DVD standard and allows for up to 6 channels of music. Software support is still scarce, but DVD-A discs are backward compatible with all video DVD players and promise audio quality superior to CD once the first DVD-A players mature. DVD-A’s competitor in the market place is Sony’s SACD format. To date, a true universal player [compatible with CD, CD-R, CD-RW, DVD-V, DVD-A and SACD] is still to be introduced.

an ultra-hi resolution format for audio on DVD

An audio version of DVD, in which multiple digital audio channels can be stored in uncompressed PCM form, or using a lossless compression algorithm (the digital audio signals are reconstructed without alteration). The massive storage capacity of DVD allows for many options.