From: "Clive Minnican" Newsgroups: comp.os.msdos.djgpp References: <200012011859 DOT NAA20531 AT envy DOT delorie DOT com> Subject: Re: Reading Disk Sectors X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Message-ID: Date: Sun, 3 Dec 2000 18:47:44 -0000 NNTP-Posting-Host: 213.105.126.179 X-Complaints-To: abuse AT ntlworld DOT com X-Trace: news6-win.server.ntlworld.com 975870774 213.105.126.179 (Sun, 03 Dec 2000 19:12:54 GMT) NNTP-Posting-Date: Sun, 03 Dec 2000 19:12:54 GMT Organization: ntl Cablemodem News Service Lines: 14 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com "DJ Delorie" wrote in message news:200012011859 DOT NAA20531 AT envy DOT delorie DOT com... > > > di.sector = 0; > > The first sector is sector 1, not sector 0. Thanks, I changed it around and everything now works fine. How come the format for sector is inconsistent with track and side, ie they start numbering from 0, is that how the original bios functions work? Clive.