RSS valid/invalid?

Question

Hey, I'm new to RSS and Podcasting. I've started a podcast, and I have a feed at http://www.rsspect.com/rss/pdmk.xml. When I try to subscribe to that feed in iTunes, it tells me that the feed is invalid. The feed looks valid to me, and I emailed RSSPect for help, and they said it looks valid to them too. Can anyone help? Here's my feed thus far:
<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/css" href="http://www.rsspect.com/css/generic.css"?><rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0">
<channel>
<title>PlusDrewMinusKelly</title>
<link>http://www.plusdrewminuskelly.com</link>
<language>en-us</language>
<copyright>Andy Goergen</copyright>
<itunes:explicit>no</itunes:explicit>
<itunes:subtitle>Inane and Geeky</itunes:subtitle>
<itunes:author>Andy Goergen</itunes:author>
<itunes:summary>A show about PlusDrew, MinusKelly, and the crap that entertains them.</itunes:summary>
<description>A show about PlusDrew, MinusKelly, and the crap that entertains them.</description>
<itunes:owner>
<itunes:name>Andy Goergen</itunes:name>
<itunes:email>[email protected]</itunes:email>
</itunes:owner>
<itunes:image href="http://www.plusdrewminuskelly.com/pdmklogo.gif" />
<itunes:category text="Arts &amp; Entertainment">
<itunes:category text="Entertainment" />
</itunes:category>
<itunes:category text="Movies &amp; Television" />
<itunes:category text="Technology" />
<item>
<title>PlusDrewMinusKelly</title>
<itunes:author>PlusDrew, Kelly</itunes:author>
<itunes:subtitle>Episode 2</itunes:subtitle>
<itunes:summary>We return for another show! They say that the second show is better than the first. Agree? Maybe not. Anyways, in this show, we talk about our trip to St. Louis for a Sufjan Stevens show, and we discuss the opening to the third season of The Office. This show contains a few spoilers if you�re not all caught up with The Ofice. As always, feel free to mail us feedback, or leave an audio message on the shoutbox to the right.</itunes:summary>
<enclosure url="http://www.plusdrewminuskelly.com/files/pdmk2.mp3" length="24776" type="audio/mpeg" />
<guid>http://www.plusdrewminuskelly.com/files/pdmk2.mp3</guid>
<pubDate>Thu, 05 Oct 2006 08:32:05 -0700</pubDate>
<itunes:duration>26:25</itunes:duration>
<itunes:keywords>television, music, movies, geeky</itunes:keywords>
<itunes:explicit>no</itunes:explicit>
</item>
<item>
<title>PlusDrewMinusKelly</title>
<itunes:author>PlusDrew, Kelly</itunes:author>
<itunes:subtitle>Episode 1</itunes:subtitle>
<itunes:summary>In the first edition of PlusDrewMinusKelly, we talk about our recent trip back to our college campus for a football game, we give a brief introduction to who we are, and we briefly talk about TV Shows that should be on DVD. </itunes:summary>
<enclosure url="http://www.plusdrewminuskelly.com/files/pdmk1.mp3" length="24711" type="audio/mpeg" />
<guid>http://www.plusdrewminuskelly.com/files/pdmk1.mp3</guid>
<pubDate>Thu, 05 Oct 2006 08:22:40 -0700</pubDate>
<itunes:duration>25:22</itunes:duration>
<itunes:keywords>movies, television, music, geeky</itunes:keywords>
<itunes:explicit>no</itunes:explicit>
</item>
</channel></rss>

Answer 1

http://feedvalidator.org/check.cgi?url=http%3A%2F%2Fwww.rsspect.com%2Frss%2Fpdmk .xml
Warning
This feed is valid, but may cause problems for some users. We recommend fixing these problems.
line 17, column 0: Arts & Entertainment is an obsolete iTunes category or sub-category [help]
<itunes:category text="Arts &amp; Entertainment">
line 18, column 0: Entertainment is an obsolete iTunes category or sub-category [help]
<itunes:category text="Entertainment" />
line 20, column 0: Movies & Television is an obsolete iTunes category or sub-category [help]
<itunes:category text="Movies &amp; Television" />