I did two tests: importing and restoring a course.
In both cases all resources / activities in areas of the HTML text display
example:
original course -> resource page:
content=
<div id="__ss_8593870" style="width: 425px;"><strong style="display: block; margin: 12px 0 4px;"><a target="_blank" title="Conteúdos de e-learning que apetece beijar " href="http://www.slideshare.net/svfernandes/kiss-julho-2011">Conteúdos de e-learning que apetece beijar </a></strong> <iframe scrolling="no" marginheight="0" marginwidth="0" frameborder="0" height="355" width="425" src="http://www.slideshare.net/slideshow/embed_code/8593870"></iframe>
<div style="padding: 5px 0 12px;">View more <a target="_blank" href="http://www.slideshare.net/">presentations</a> from <a target="_blank" href="http://www.slideshare.net/svfernandes">Selma Fernandes</a></div>
</div>
in imported course
content=
div id="__ss_8593870" style="width: 425px;"strong style="display: block; margin: 12px 0 4px;"a target="_blank" title="Conteúdos de e-learning que apetece beijar " href="http://www.slideshare.net/svfernandes/kiss-julho-2011"Conteúdos de e-learning que apetece beijar /a/strong iframe scrolling="no" marginheight="0" marginwidth="0" frameborder="0" height="355" width="425" src="http://www.slideshare.net/slideshow/embed_code/8593870"/iframe
div style="padding: 5px 0 12px;"View more a target="_blank" href="http://www.slideshare.net/"presentations/a from a target="_blank" href="http://www.slideshare.net/svfernandes"Selma Fernandes/a/div
/div
in database , tabel mdl_page the content was stored with erros in code html
any suggestions?