// select all assets under V:/default and its subdirectories
int cookie = mediaMgr.SelectAllAssets("bin/cmf//localhost/V:/default", "", out count);

// setup query string
string query = "uri+lengthstr";

// Let's only get info on the first 100 clips in the bin
object dataObj = null;
mediaMgr.GetResultProperty( cookie, query, 0, 100, out count, out dataObj);

Console.WriteLine("number of assets: " + count);

// GetResultProperty for clip data returns a 2 dimensional array
// - the first dimension represents the clip
// - the second dimension represents the properties of the clip

// so let's cast the dataobj to a clip array first
object[] clipArray = (object[]) dataObj;                

// loop thru each clip
foreach (object clip in clipArray)
{
    // then cast the clip object to an array of properties for each clip
    object[] propertyArray = (object[]) clip;

    // and finally print out the clip properties for each clip
    Console.WriteLine("Clip: {0}  Length: {1}", propertyArray[0], propertyArray[1]);
}

// make sure that you close the results after enumerating volumes, bins, or assets.
// if you don't, you will run out of database selectors!
mediaMgr.CloseResults(cookie);