<html>
<head>
<style><!--
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 12pt;
font-family:Calibri
}
--></style></head>
<body class='hmmessage'><div dir='ltr'><font style="" color="#000000" face="Tahoma,sans-serif">You mentioned a 16G class 4 card. We recommend nothing less than a class 10 and in most cases we are using class 10 plus cards at this time. Also Sandisk brand is recommended. Using cheap unbranded cards and cards of less than class 10 can lead to the problems that people often complain about in other distributions. <br><br>So far we have had very little SD card problems. I have programmed and run dozens of systems and never had a problem with Sandisk class 10 8G or 16G cards. I never expand the file system nor do I recommend doing it unless you have a specific application. <br><br>Write times vary mostly depending on the writer and USB speeds when you are using a class 10 but are usually in the 10 minute range.<br><br>It is always a good idea to have a backup card but as long as you don't change anything much from the setup in many cases it would be just as easy to setup a new card if you lost the old one for some reason.<br id="FontBreak"></font><br><b><font style="font-size:16pt;" size="4">73 Doug</font><font style="font-size:16pt;" size="4"><br></font><font style="font-size:16pt;" size="4">WA3DSP</font><font style="font-size:16pt;" size="4"><br></font><font style="font-size:16pt;" size="4">http://www.crompton.com/hamradio</font></b><font style="font-size:16pt;" size="4"><br></font><br><br><div><br></div> </div></body>
</html>