While probably not quite as hard, it's on the same order of difficulty as writing a poem who's MD5 checksum is the first 32 characters of the declaration of independence.
First off, the CD-R writes pits whose edges are detected, so you have to translate edges into pixels.
Also, you'd be limited to pits/lands that are between 2 and 10 bits long (if memory serves), since the data you feed it are eight-to-fourteen modulated (eight bit data coming in are translated to the set of fourteen bit numbers with strings of 2 to 10 zeroes -- note that there are a few extra suitable 14-bit values, which is where the subchannels (p, q, etc.) come from).
But before you do that, the CD-R interlaces the data around the disc so that a scratch won't wipe out more than a few bits of a given byte. So you'd have to figure out in advance where a given bit will end up.
So it is probably theoretically possible to burn a certain set of images onto a CD-R. If you pull this off, you might send a copy to the NSA and maybe they will hire you.
My friend told me about a similar car (a Honda Accord) owned by the Ventura County Sheriff that would stall, lock all the doors, roll up the windows and call the police a few blocks from whereever it was stolen.
In most Southern California towns it lasted about two hours before someone came by and drove off.
In his town, after two weeks of sitting at the side of the road, unlocked, with the keys in the ignition, it still hadn't been stolen. OTOH, this was in Simi Valley, a town (and I am not making this up) that has a Denny's that closes. Every night.
My friend took this as an omen and a few months later decided to move.
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While probably not quite as hard, it's on the same order of difficulty as writing a poem who's MD5 checksum is the first 32 characters of the declaration of independence.
First off, the CD-R writes pits whose edges are detected, so you have to translate edges into pixels.
Also, you'd be limited to pits/lands that are between 2 and 10 bits long (if memory serves), since the data you feed it are eight-to-fourteen modulated (eight bit data coming in are translated to the set of fourteen bit numbers with strings of 2 to 10 zeroes -- note that there are a few extra suitable 14-bit values, which is where the subchannels (p, q, etc.) come from).
But before you do that, the CD-R interlaces the data around the disc so that a scratch won't wipe out more than a few bits of a given byte. So you'd have to figure out in advance where a given bit will end up.
So it is probably theoretically possible to burn a certain set of images onto a CD-R. If you pull this off, you might send a copy to the NSA and maybe they will hire you.
...at the halfbakery.
A band by the same name.
My friend told me about a similar car (a Honda Accord) owned by the Ventura County Sheriff that would stall, lock all the doors, roll up the windows and call the police a few blocks from whereever it was stolen.
In most Southern California towns it lasted about two hours before someone came by and drove off.
In his town, after two weeks of sitting at the side of the road, unlocked, with the keys in the ignition, it still hadn't been stolen. OTOH, this was in Simi Valley, a town (and I am not making this up) that has a Denny's that closes. Every night.
My friend took this as an omen and a few months later decided to move.