<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">Ken, a BRF file is essentially just a plaintext file. They're only a few hundred kilobytes (very, very small). If you buy, say, a 32 GB card, I bet you could probably fit NLS's entire collection on it. You'd have room for literally thousands and thousands of books. You say your book is six volumes; it's probably only a few hundred kilobytes. The talking books are much, much bigger because it's a recording of a person's voice. A BRF file is just ASCII characters. For the curious, try it—try opening up a BRF file in Notepad. If you know computer Braille, and if you're insane enough, you could probably read it. I've done this before in order to remove all the "header crap" at the top of a BRF copy of a Bookshare book in order to make reading smoother for people. Anyway, to end this massive rambling message, pretty much any size card you get should be enough. I'm not sure, though, if there's an upper limit or not. On some HumanWare products, 64 GB is the limit (that might be the case here too, I don't know).</div><div class=""><br class=""></div><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Dec 4, 2020, at 8:22 AM, ken lawrence via NJTechDiv <<a href="mailto:njtechdiv@nfbnet.org" class="">njtechdiv@nfbnet.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Hi division members am thinking about getting an SD card for the braille reader while saving my thumb drive for talking books. I have to wipe that thumb drive first though Huh? I’m not sure what size SD card to get. Does anyone on list know how big a dot BRF file is? I know the book I have for the reader is six volumes that’s pretty big Huh? Does any know how big or small BRF files are? It sounds like they are bigger than files in other text formats like TXT, Dox or HTML which BTW all are supported by the reader. <span class="Apple-converted-space"> </span></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Sent from<span class="Apple-converted-space"> </span><a href="https://go.microsoft.com/fwlink/?LinkId=550986" style="color: blue; text-decoration: underline;" class="">Mail</a><span class="Apple-converted-space"> </span>for Windows 10</div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; 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