Difference between SP and LP Recording

Key Difference: SP (Standard Play) and LP (Long Play) define two different recording modes. They primarily differ in context to speeds at which video tapes are run through the recorder.

SP stands for Standard Play, whereas LP stands for Long Play. They define two different recording modes commonly found in applications like digital video cameras and VCR. SP records in standard recording time, whereas LP mode provides the capability of providing longest recording time. However, this feature comes with a constraint. The quality is compromised in order to get the longest recording time. Some black noise may also appear in some scenes.

In standard mode, the quality of the recording remains the same as it was intended. There is no type of quality loss. This mode is generally set by default. In VCR, LP is achieved by reducing the speed by which tape would run in the VCR. This  decrease in the tape speed decreases the quality of the recording. One may also find the images as blurred or some type of color issues, which can be easily avoided by choosing SP mode. 

The reason behind these discrepancies in two modes is due to the speed by which the tape moves over tape heads. Usually, SP moves the tape at 18.812 mm/sec and LP moves at a 12.56 mm/sec. Generally, recordings by LP are 1.5 times longer than the standard mode.

The modes are generally supported by SP and LP recorders. Some other high quality modes are Stereo (ST), high Quality (HQ), Stereo Standard Play (SSP), etc.  

Comparison between SP and LP Recording:

 

             SP Recording

     LP Recording

Full Form

Standard Play Recording

Longest Play Recording

Definition

SP records in standard recording time

LP mode provides the capability of providing longest recording time

Quality of recording

Better

Compromised

Example

It can fit 2 hours of video in a single tape (On VHS and 8mm/Hi8 tapes)

It can fit one hour per tape (On Mini DV and Digital 8)

4 hours -  on a standard 4.7 GB blank DVD. Single layer, single sided discs.

Usage

It is the most common recording speed used for VHS tapes

It is a seldom used format and has been removed from many VCRs

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