As an example, the PSP's UMD format. So much time/effort went into that, while at the same time allowing content to be read from an SD card. Of course I can only assume this was meant as some lame IP protection, and possibly an attempt to bring back a format similar to the once popular minidisc. Also funny to me was that Blu-ray was knock knock knocking already with their Java based programming, while the UMD was programmed much more similarly to HD-DVDs.
