Whats an unfinalized disc and why won it play in my player?
Many DVD recorders can record onto DVD-R and DVD+R discs in unfinalized form, where temporary directory information is recorded after the last recorded section instead of at the beginning of the disc in the normal place. (This is sometimes called the TMPVMGI format, after the name for the temporary data.) This technique allows a write-once disc to be recorded in more than one session, since updated temporary directory information is written after each new recorded area. Most DVD recorders and some DVD players can read unfinalized discs by checking in reverse order from the end of the disc for the most recently recorded directory information. When a disc is finalized, the directory information is written in the normal place, allowing standard DVD players to recognize and play the disc.
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- Whats an unfinalized disc and why won it play in my player?