有关BLOB的问题...

Question

play.asp
<%
set rs1 = Server.CreateObject("ADODB.Recordset")
rs1.ActiveConnection = MM_conn_STRING
rs1.Source = "SELECT * FROM ZDWY.TV WHERE TVID = '"&Request.QueryString("id")& "'"
rs1.CursorType = 0
rs1.CursorLocation = 2
rs1.LockType = 3
rs1.Open()
%><%
    response.contenttype="audio/x-pn-realaudio"
response.write "pnm://"&request.servervariables("server_name")&"/hospital/webtv/asf/"&rs1("tvname")&vbcrlf
rs1("tvtimes")=rs1("tvtimes")+1
rs1.update()
    rs1.Close()
set rs1.activeconnection=nothing
%>
main.asp
<SCRIPT language=javascript>
function playit(id) {
//var xid;
win=window.open("play.asp?id="+id,"","width=300,height=270,scrollbars=no,resizable=no,center:yes");
win.focus();
}</SCRIPT>
............
<TABLE cellSpacing=0 cellPadding=0 width="85%" align=center border=0>
        <TBODY> 
        <TR> 
          <TD align=middle>&nbsp;</TD>
        </TR>
        <TR> 
          <TD align=middle width="33%" bgColor=#f2dfff>防治沙眼和防止眼外伤</TD>
        </TR>
        <TR> 
          <TD align=middle width="33%" height=90><A 
                                href='javascript:playit(001)'> <IMG height=80 
                                src="../images/eye2001121702.jpg" 
                                width=80 border=0></A></TD>
        </TR>
        <TR> 
          <TD align=middle>&nbsp;</TD>
        </TR>
        <TR> 
          <TD title=本片讲述对沙眼的防治和怎样防止眼外伤，使青少年有一双明亮健康的眼睛。本片由广东珠江音像出版社发行。 width="33%">
  简介:本片讲述对沙眼的防治和怎样防止眼外伤，使青少年有一双明亮健康的眼睛。本片由广东珠江音像出版社发行。..</TD>
        </TR>
        <TR> 
          <TD>在线观看次数: <%=showtimes(001)%></TD>
</TR>
        <TR> 
          <TD><A href='javascript:playit("001")'>在线观看</A></TD>
        </TR>
        <TR></TR>
        </TBODY> 
      </TABLE>