Added a couple of explanatory comments.

Plugins/HTTPSource/HTTPSource.m

@@ -15,6 +15,7 @@
 {
 	_connection = [[HTTPConnection alloc] initWithURL:url];
 	
+	// Note: The User-Agent CANNOT contain the string "Mozilla" or Shoutcast/Icecast will serve up HTML
 	NSString *userAgent = [NSString stringWithFormat:@"Cog %@", [[NSBundle mainBundle] objectForInfoDictionaryKey:(NSString *)kCFBundleVersionKey]];
 	[_connection setValue:userAgent forRequestHeader:@"User-Agent"];
 	[_connection setValue:@"close" forRequestHeader:@"Connection"];

Plugins/HTTPSource/Utils/HTTPConnection.m

@@ -85,9 +85,13 @@
 	}
 	
 	NSInteger lineLength = ((uint8_t *)newLine - (uint8_t *)_buffer);
+	
+	// We are using ASCII encoding here because some Icecast servers will insert a random 0xaa or two into the headers
 	NSString *line = [[NSString alloc] initWithBytes:_buffer length:lineLength encoding:NSASCIIStringEncoding];
 	NSLog(@"Received line: \"%@\"", line);
+	
 	memmove(_buffer, _buffer + lineLength + 2, _bufferSize - lineLength); // + 2 to skip the newline!
+
 	_bufferSize -= lineLength;
 	
 	return [line autorelease];