Having trouble adding video files to my site using type="file"

Thanks Rachel, yes, they have been added to my perch resources folder.

Here is my full diagnostics report...

Perch: 2.6.4
Production mode: Production (100)
Installed apps: content (2.6.4), assets (2.6.4), categories (2.6.4), perch_blog (4.1)
DB driver: PDO
DB tables: perch2_blog_authors, perch2_blog_categories, perch2_blog_comments, perch2_blog_posts, perch2_blog_posts_to_categories, perch2_blog_posts_to_tags, perch2_blog_sections, perch2_blog_tags, perch2_categories, perch2_category_counts, perch2_category_sets, perch2_content_index, perch2_content_items, perch2_content_regions, perch2_navigation, perch2_navigation_pages, perch2_page_templates, perch2_pages, perch2_resource_log, perch2_resource_tags, perch2_resources, perch2_resources_to_tags, perch2_settings, perch2_user_privileges, perch2_user_role_privileges, perch2_user_roles, perch2_users
Users: 1
App runtimes:
<?php
    $apps_list = array(
        'content', 
        'categories',
        'perch_blog',
    );
Scheduled tasks for perch_blog: delete_spam_comments (1440 mins)
Editor plug-ins: markitup
H1: 421aa90e079fa326b6494f812ad13e79
L1: 84d1a2091afe81189051f2c526c80e56
headerColour: #ffffff
content_singlePageEdit: 1
helpURL:
hideBranding: 1
content_collapseList: 1
lang: en-gb
update_2.6.4: done
latest_version: 2.5.3
on_sale_version: 2.6.5
perch_blog_post_url: post.php?s={postSlug}
perch_blog_update: 4.0
headerScheme: light
perch_blog_slug_format: %Y-%m-%d-{postTitle}
perch_blog_akismet_key:
perch_blog_max_spam_days: 0
dashboard: 0
hide_pwd_reset: 0
content_hideNonEditableRegions: 0
content_frontend_edit: 0
perch_blog_comment_notify: 0
siteURL: /
PERCH_DEVELOPMENT: 10
PERCH_STAGING: 50
PERCH_PRODUCTION: 100
PERCH_DB_USERNAME: root
PERCH_DB_SERVER: localhost
PERCH_DB_DATABASE: perch_mobile
PERCH_DB_PREFIX: perch2_
PERCH_TZ: UTC
PERCH_EMAIL_FROM: info@hatchinc.co
PERCH_EMAIL_FROM_NAME: David Springate
PERCH_LOGINPATH: /mobile/perch
PERCH_PATH: /Applications/MAMP/htdocs/mobile/perch
PERCH_CORE: /Applications/MAMP/htdocs/mobile/perch/core
PERCH_RESFILEPATH: /Applications/MAMP/htdocs/mobile/perch/resources
PERCH_RESPATH: /mobile/perch/resources
PERCH_HTML5: 1
PERCH_RUNWAY:
PERCH_ERROR_MODE: DIE
PERCH_DATE_LONG: %d %B %Y
PERCH_DATE_SHORT: %d %b %Y
PERCH_TIME_SHORT: %H:%M
PERCH_TIME_LONG: %H:%M:%S
PERCH_DEBUG:
PERCH_PREVIEW_ARG: preview
PERCH_TEMPLATE_PATH: /Applications/MAMP/htdocs/mobile/perch/templates
PERCH_DEFAULT_DOC: index.php
PERCH_DEFAULT_EXT: .php
PERCH_PRODUCTION_MODE: 100
PERCH_RWD:
PERCH_HTML_ENTITIES:
PERCH_SSL:
PERCH_AUTH_PLUGIN:
PERCH_DB_CHARSET: utf8
PERCH_DB_PORT:
PERCH_DB_SOCKET:
HOSTING SETTINGS

PHP: 5.3.6
Zend: 2.3.0
OS: Darwin
SAPI: apache2handler
Safe mode: not detected
MySQL client: 5.5.9
MySQL server: 5.5.9
Extensions: Core, date, ereg, libxml, openssl, pcre, sqlite3, zlib, bcmath, bz2, calendar, ctype, curl, dom, hash, fileinfo, filter, ftp, gd, SPL, iconv, json, ldap, mbstring, mysql, mysqli, session, PDO, pdo_sqlite, standard, posix, Reflection, Phar, SimpleXML, soap, sockets, SQLite, exif, tokenizer, xml, xmlreader, xmlwriter, xsl, zip, apache2handler, imap, yaz, mcrypt, gettext, pgsql, pdo_pgsql, pdo_mysql, XCache
GD: Yes
ImageMagick: No
PHP max upload size: 32M
PHP max form post size: 32M
PHP memory limit: 32M
Total max uploadable file size: 32M
Resource folder writeable: Yes
Session timeout: 24 minutes
Native JSON: Yes
Filter functions: Yes
Transliteration functions: No
HTTP_HOST: localhost
HTTP_ACCEPT: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_CONNECTION: keep-alive
HTTP_COOKIE: cmsa=1; PHPSESSID=73baa319b8f2ed6743dc4df4a484f69f; SQLiteManager_currentLangue=2
HTTP_USER_AGENT: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_3) AppleWebKit/537.75.14 (KHTML, like Gecko) Version/7.0.3 Safari/537.75.14
HTTP_ACCEPT_LANGUAGE: en-us
HTTP_REFERER: https://localhost/mobile/perch/core/settings/diagnostics/
HTTP_ACCEPT_ENCODING: gzip, deflate
PATH: /usr/bin:/bin:/usr/sbin:/sbin
SERVER_SOFTWARE: Apache/2.2.21 (Unix) mod_ssl/2.2.21 OpenSSL/0.9.8y DAV/2 PHP/5.3.6
SERVER_NAME: localhost
SERVER_ADDR: ::1
SERVER_PORT: 80
REMOTE_ADDR: ::1
DOCUMENT_ROOT: /Applications/MAMP/htdocs
SERVER_ADMIN: you@example.com
SCRIPT_FILENAME: /Applications/MAMP/htdocs/mobile/perch/core/settings/diagnostics/index.php
REMOTE_PORT: 53867
GATEWAY_INTERFACE: CGI/1.1
SERVER_PROTOCOL: HTTP/1.1
REQUEST_METHOD: GET
QUERY_STRING: extended
REQUEST_URI: /mobile/perch/core/settings/diagnostics/?extended
SCRIPT_NAME: /mobile/perch/core/settings/diagnostics/index.php
PHP_SELF: /mobile/perch/core/settings/diagnostics/index.php
REQUEST_TIME: 1411038359
argc: 1

So I click to 'select or upload a file' then on adding an asset i've tried both dragging the file into the box and also clicking and selecting it from my files.

When I select the file I want to add it sort of uploads it and then the assets disappear from view. So from there I tried clicking 'add an asset' again and they appear but they aren't selectable. Visually they are showing up in the assets app with a grey box within a white frame with a green strip along the bottom and the file size of the asset.

Any idea whats wrong here?

Thanks