uSeesoft DVD Audio Ripper will meet your need perfectly, for it can rip and convert DVD files to audio format, like DVD to MP3, DVD to WAV, DVD to WMA, DVD to M4A, DVD to AAC, DVD to AC3, DVD to OGG, DVD to APE, etc.
EaseSoft DataMatrix Barcode ASP.NET Web ServerControls use its internal HttpHandler to transfer barcode images directly to the client without any temporary files.