identification

I'd like to be able to determine what music album CD is in a CD drive. For example, if someone claims that the CD in their drive is Eminem - The Eminem Show, I would like to be able to verify that the CD is indeed The Eminem Show. Any ideas? I've applied for a Gracenote developer license, but they won't get back to me for five days. Also, how does this work? Is there some GUID or other unique identifier that music discs are encoded with? Lastly, might this be possible with data CDs, like, say, the Diablo II install Disc 1? If so, any directions you can point me in, for accomplishing this? You

We have a service where we literally give away free money. Naturally said service is ripe for abuse. To defend against this we do the following: log ip address use unique email addresses (only 1 acct/email addy) collect more info like st. address, phone number, etc. use signup captcha BHOs (I've seen poker rooms use these) Now, let's get real here -- NONE of this will stop a determined user. Obviously ip addresses can be changed via a proxy (which could be blacklisted via akismet) but change anyways if the user has a dynamic ip or if more than one user is behind a NAT'd network (can we say

I'm working on a client-server Android application and trying to figure out how to identify different phones/users to the server unambiguously. My first attempt would be to use the phone number on the SIM card. Although now that I think about it, how common is it these days that your phone number changes when you e.g. change carrier? I guess it depends from country to country etc. Anyway, I've been trying to figure out, since I don't have actual Android phones, how to change the phone number of the emulator phone to simulate different users. Is it possible or should I just think about

I am reading data from multiple identical USB-serial adapters under Ubuntu 10.1. On occasion, their /dev/tty path changes (eg if other USB devices are connected on startup). I need a way of repeatedly referring to the same adapter through any such changes. The devices all have the same serial numbers, according to udevadm. I think the most likely option is to identify an adapter by which port it is connected to (they don't get moved around). I can find all sorts of interesting /dev paths that might work, but despite all the discussion about udev online, I can't locate a definitive statement

I've read this question: What's the difference between identifying and non-identifying relationships? But I'm still not too sure... What I have is three tables. Users Objects Pictures A user can own many objects and can also post many pictures per individual object. My gut feeling tells me this is an identifying relationship, because I'll need the userID in the objects table and I'll need the objectID in the pictures tables... Or am I wrong? The explanations in the other topic limit themselves to the theoretical explanation of the way the database interprets it after it's already been coded,

How can I quickly generate an unique computer id for a delphi app? I used to do it easly with c#, but this failed sometimes. I do want the ID to be "static" but I don't care if the id changes because of a hardware change or OS reinstallation, I was planning to store it in the registry and check it when the app starts, and if it changed update the registry. (I know how to code the registry part, I only need help for the unique id). Thanks. Frederik Slijkerman Use the hard disk serial number or MAC address: How to get serial number from hard disks? Generating a unique machine id Have a look at