A DVD+R is an optical, write-once recordable disk with 4.6 gigabyte storage capacity. It is similar to a DVD-R format. A DVD is a special recording medium for TV and movies, computers and audio data. There are several variations of the DVD, which can be categorized into the "minus" (-) formats and "plus" (+) formats, namely DVD-R/-RW and DVD+R/+RW.
Techopedia explains DVD+R
DVD+R was developed in 2002 by a union of companies known as the DVD+RW Alliance. By 2004, the developers have started to advertise the format. Before its official release, the DVD-R was preferred because most of the DVD players and disk drives at that time did not the recognize DVD+R format. The DVD-R Forum, which developed the DVD-R format, did not accept the "plus" design as a formal DVD format until its official release in January 2008.
According to the DVD Alliance, which is composed of companies like Microsoft, Sony, Yamaha, Dell, Phillips and many others, the use of the DVD+R/+RW format has its advantages compared to the typical DVD-R/-RW:
It is compatible with other DVD players and provides extra recording features.
The format has the capability to record data partly on a computer and partly on a television.
It has an improved ability to edit file names
It can eject instantly without waiting for final formatting.