Bakey said:Something I didn't realise until a few weeks ago is that iLink is a slightly re-engineered Firewire spec. With the Apple Firewire (400) being 6-pin [carrying power with it] and iLink being 4-pin and as a consequence it is much, much smaller.
it's not re-engineered, but rather "partially implemented" to be exact. those four pins are identical to four of the 6pin full implementation data pins, and are enough to 100% performance in every way.
full implementation of the IEEE1394 spec also has two power pins, which is sometimes useful but not always. such low-power devices as scanners, flash readers etc. can really benefit from the power pins as those can now be manufactured without dedicated power supplies and therefore work universally everywhere.
however, this is not aslways the case. firewire offers insufficient power for high power devices such as video cameras etc. which will require a power supply of their own. those devices cannot benefit from the power offered by firewire, so therefore it wouldn't hurt to use only four pins if design or whatever requires that connectors must be as small as possible. performance is just as good.
Bakey said:I was under the assumption that Sony had done its usual trick of simply 'rebranding' something that already existed!
well, they have just decided to use a different name for the IEEE1394 spec that apple calls firewire. it's stupid, but what can you expect from a company desperately hanging on ATRAC