Good morning boys, I'm experiencing a problem when writing a CFArray of CFData elements to disk. Viewing the file in Property List Editor shows the data elements to be empty (<>). Below are simplified examples of my create and write functions. Can any of yoos see anything obvious that I'm doing wrong? Full example is at: <http://homepage.ntlworld.com/bernie.w/ ReadWriteCFArrayTest FB.zip> (20K) Cheers Bernie '--------------- begin record DBData dim as CFStringRef string end record local mode local fn CreateArray '~'1 dim as CFMutableArrayRef array dim as CFMutableDataRef dataRef dim as DBData cellData array = fn CFArrayCreateMutable( 0, 0, fn CFTypeArrayCallBacks() ) long if ( array ) dataRef = fn CFDataCreateMutable( 0, 0 ) long if ( dataRef ) cellData.string = fn CFSTR( "MyData" ) CFDataReplaceBytes( dataRef, 0, sizeof(DBData), cellData, sizeof (DBData) ) CFArrayAppendValue( array, dataRef ) CFRelease( dataRef ) end if end if end fn = array local mode local fn WriteArray( array as CFMutableArrayRef, url as CFURLRef ) '~'1 dim as CFDataRef dataRef dim as Boolean result : result = _false dataRef = fn CFPropertyListCreateXMLData( 0, array ) long if ( dataRef ) result = fn CFURLWriteDataAndPropertiesToResource( url, dataRef, 0, #0 ) CFRelease( dataRef ) end if end fn = result '---------------