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Join Date: Jun 2004
Location: Cedar Rapids, Iowa
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The equivalent to pressed optical spinning media can be either mask ROMs or one-time-programmable Flash ROM (the final programming step is to blow the erase/write-enable link). Nothing is hard about making a non-erasable SD memory card right now.
In either case the digital content likely can be copied to a hard disk drive. So far all DVDs, HD DVDs and BDs can be copied to a hard disk drive.
Why does having the initial distrbution media being non-eraseable really make a rational difference if the contents can be copied? If it really is required it can be made non-erasable.