These can be written to once. Once the data is burned, it cannot be erased or changed.
In the context of film distribution and archiving, a "DVDR" release usually implies a of an original retail DVD. Typically maintains the original resolution of 480p (NTSC) 576p (PAL)
Most modern players handle both, but Wikipedia notes that older players might only support one specific format.
Movies on DVD-R discs are distinct from factory-pressed DVD-ROMs (the "silver" discs you buy at retail). DVD-R - Википедия
"Filmes DVDR" commonly denotes movies distributed or archived in DVDR format — video files or physical DVDs ripped and encoded at DVD resolution (typically 720×480 NTSC or 720×576 PAL) and packaged for digital download or sharing. In many Portuguese-speaking contexts, the term appears in online listings, torrent/scene releases, and archive sites describing DVD-quality rips.
