Fingerprint scratched the dirt with a DVD disc and write bad quality DVD discs can be played back even raise the possibility "PowerRead" function.
VIDEO - DVD titles, DVD-Video format, DVD-VR format recorded DVD disc recording by the effect that all DVD disc for playback that is not guaranteed. Also, the state of DVD disks, depending on the image in blocking noise, the sound of the voice is not able to fly. PowerRead feature is the support and drive supports DVD player software is required.
Essentially, if your DVD has a spot that the drive can't read, it skips it and moves on.
"PURE READ (original sound reproduction)" function that the voice data can be read more faithfully when audio CD reproduces is installed.
A usual DVD/CD writer calculates the data from data when a part of data cannot about be read due to dirt and wound, etc. on the surface of the disk when audio CD reproduces, and the supplementation method is adopted.
However, completely supplementing the music signal to which the volume and tone quality were always changeable from the data of the back and forth also has what where the change and the noise of tone quality are difficultly generated a lot.
Pioneer's "PURE READ (original sound reproduction)" retries at high speed while changing the parameter at the time of reading depending on an original algorithm (Go for reading again in the data that was not able to be read). As a result, suppressing the incidence of the lack and the supplementation with data, and reading the music data of audio CD more faithfully became possible.
PURE READ is probably the more impressive of the two as it tries to read and recover a damaged sector on an audio CD in an attempt to deliver the best quality.