1 Reply Latest reply on Aug 29, 2009 11:29 PM by ahmetceylan

    Media Encoder CS4 output file size varies--why??

    smendres

      I was batch encoding several files yesterday, and one of the files failed. Adobe Media Encoder provided no details, other than when I hover over the yellow exclamation point error icon, it says: "Error compiling movie. Unknown error." Very insightful.

       

      Today I reprocessed the file same file with the same preset [FLV - Same As Source (Flash 7 and Higher)] and it worked fine. To check for instability on my machine, I actually ran the same job 10 times, and each job succeeded. But the curious thing is, even though I was using the same input file and output preset, I see that the output files vary in size. The output sizes are:

       

      30,739,977 bytes

      30,750,834 bytes

      30,750,504bytes

      30,750,654bytes

      30,739,928bytes

      30,740,044bytes

      30,750,615bytes

      30,740,001bytes

      30,739,979bytes

      30,750,637bytes

       

      Now I understand that this variation is less than 10kB on a 30MB file, so it's prety small. But I am curious as to why the file size would vary in this way.

       

      Any ideas?