There are apparently five different blank DVD formats. All of these are for data, of course — all but the newest DVD video players will choke on those, in the same way early CD players choked on CD-R discs. The plus formats have the same data storage capacity as the minus formats 4. DVD-RW is rewritable, so you can use it somewhat like a 4. How do you confirm what format your drive works with? As far as your second question, your data-burning application definitely has to be aware of the DVD format you want to use i.
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Some MacOS users might be intimidated by the Terminal and its commands. When using Terminal on Mac, it might look like you are trying to hack into a system. While of course, it is not the case, knowing Mac Terminal commands will give you an upper hand in mastering the MacOS environment. As a Terminal emulator, it provides you with text-based access to the operating system. Once you grasp its basic functionality you can take on more complex tasks and when you do so, using the Terminal can be a lot of fun. The Terminal application is in the Utilities folder in Applications.
Due to its design, it is very well suited to incremental updates on both recordable and re writable optical media. Normally, authoring software will master a UDF file system in a batch process and write it to optical media in a single pass. But when packet writing to rewritable media, such as CD-RW , UDF allows files to be created, deleted and changed on-disc just as a general-purpose filesystem would on removable media like floppy disks and flash drives. This is also possible on write-once media, such as CD-R , but in that case the space occupied by the deleted files cannot be reclaimed and instead becomes inaccessible.