File size always remains same as 12288 bytes for small files

I am using Wp7IsolatedStorageExplorer to get some 开发者_开发技巧small files (say max 20 bytes) stored in IsolatedStorage.But every time I download file the Filesize remains 12288 bytes(for small files) .Is IsolatedStorageExplorer appending something at last OR Is it How small Files are stored in IsolatedStorage by default ?

Thanks

vaysage.

Initially I thought this might be an indication of the underlying FAT implementation.

However, having looked a bit deeper and having looked at your answers to comments, my guess is that this is just a UI issue in the IsolatedStorageExplorer - if you look at the source http://wp7explorer.codeplex.com/SourceControl/changeset/view/63791#1114123 - then it seems to use 12288 as a chunk size for its networking layers.