For computers, a buffer underrun is the situation in which a data buffer that is described by a source and read by others, suddenly is empty because the source is not fast enough supplies data.

CD / DVD / BD burning problem

A buffer underrun was formerly often the cause of failed firing tests. A CD / DVD / BD had to be continuously described because, unlike reading a stopping and restarting the write operation was not possible without error. If the data come from a relatively slow source, such as a hard disk or another CD / DVD / BD, the small buffer of the burner can be at high CPU load or tight main memory by the burning process faster empty than can be supplied by the data source firing data. Due to the sharp rise of more modern computer speeds and better prioritization of firing data during processing buffer underrun problems in recent years have declined markedly.

Buffer Underrun Protection

The problem of the write outs in a buffer underrun could solve the manufacturer of burners, by introducing a so-called buffer underrun protection. Examples of this technique are Plextor Burn Proof, Sanyo's BURN Proof (for CD -R and DVD-R), Yamaha Safe Burn, Just Link, Smooth Seamless Link or Link (for Blu -ray Disc). These techniques are based on the possibility to interrupt the write operation during firing and resume again after the data buffer has been filled again.

  • Memory technology
  • Error