I received what I think is a DVD. Nothing printed on it. One side is blue. The envelope it was in had printed on it non machinable. I have no clue what it is for or where to use it.
Just one of several possibilities:
It is just a normal autoplaying DVD, and when/if you put it in your dvd drive it loads a virus into your PC, destroying everything you have. Or maybe an advertising backdoor so someone can send you direct ads forever after, or ...
To make a more sensible guess we need to know more
who sent it to you? Was there a return address ?
did you ask them to send you something ? if so what ? (it could be entirely legitimate)
Any other odd things about it or the way you got it ?
With google I found that "non machineable" is a postal category for letters that cannot be handled by normal letter sorting machines:
ref: http://pe.usps.com/text/dmm300/101.htm
A letter-size piece is nonmachinable if it has one or more of the following characteristics (see 601.1.1.2 to determine the length, height, top, and bottom of a mailpiece):
a. Has an aspect ratio (length divided by height) of less than 1.3 or more than 2.5.
b. Is polybagged, polywrapped, enclosed in any plastic material, or has an exterior surface made of a material that is not paper. Windows in envelopes made of paper do not make mailpieces nonmachinable. Attachments allowable under applicable eligibility standards do not make mailpieces nonmachinable.
c. Has clasps, strings, buttons, or similar closure devices.
d. Contains items such as pens, pencils, keys, or coins that cause the thickness of the mailpiece to be uneven; or loose keys or coins or similar objects not affixed to the contents within the mailpiece. Loose items may cause a letter to be nonmailable when mailed in paper envelopes; (see 601.3.3).
e. Is too rigid (does not bend easily when subjected to a transport belt tension of 40 pounds around an 11-inch diameter turn).
f. For pieces more than 4-1/4 inches high or 6 inches long, the thickness is less than 0.009 inch.
g. Has a delivery address parallel to the shorter dimension of the mailpiece.
h. Is a self-mailer that is not prepared according to 201.3.14.
i. Is a booklet that is not prepared according to 201.3.16.
don't know who sent it however there is an address 300 N Holly Ave #335 Sioux Falls SD S7104
I haven't tried the DVD in my laptop.