Introduction
Choosing a disc (Continued)
Structure of disc contents
Normally, DVD video discs are divided into titles, and the titles are subdivided into chapters.
VIDEO CDs/audio CDs are divided into tracks.
DVD video disc
Title 1 
Title 2 
Chapter 1 Chapter 2 Chapter 1 Chapter 2 Chapter 3
VIDEO CD / audio CD
Track 1 | Track 2 | Track 3 | Track 4 | Track 5 | |||||
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Title: Divided contents of a DVD video disc. Roughly corresponds to a story title in short stories.
Chapter: Divided contents of a title. This corresponds to a chapter in a story.
Track: Divided contents of a VIDEO CD or an audio CD.
Each title, chapter, or track is assigned a number, which is called “title number”, “chapter number”, or “track number” respectively.
Some discs may not have these numbers.
When you record on the HDD or a
On handling discs
Do not touch the playback side of the disc.
Yes
Playback side
Do not stick paper or tape to discs.
No
On cleaning discs
Fingerprints and dust on the disc cause picture and sound deterioration. Wipe the disc from the center outwards with a soft cloth. Always keep the disc clean.
Yes 
No
Do not use any type of solvent such as thinner, benzine, commercially available cleaners or antistatic spray for vinyl LPs. It may damage the disc.
On storing discs
Do not store discs in a place subject to direct sunlight or near heat sources.
Do not store discs in places subject to moisture and dust such as a bathroom or near a humidifier. 
Store discs vertically in a case. Stacking or placing objects on discs outside of their case may cause warping.
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