Recent content by Jhon J

  1. J

    Digital .CR2 formate Image problem?

    i m using 32gb Class 6 SDHC Memory card and i took more then 130 picture today with my camera , and when i trying to preview of my pic's it say on the camera screen "Can't play back image" and i copy all these files in my Workstation and it says "Invalid Image" on the black screen, i can see...
  2. J

    please tell me david ricardo's contribution to economics.?

    hi, could you please tell me all the contributions david ricardo made to economics? thanks,.
  3. J

    Sending textbook using usps.... what's cheaper, media mail or flat rate mailing...

    ...service/.? hello, could somebody please tell me which of these two services is cheaper for sending textbooks? 1 media mail or 2 flat rate mailing service ??/ I have a flat rte mailing envelope.. could I use this envelope to send a book using media service? thank you.
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